Extension builders in Swindon

Are you looking for professional extension builders in Swindon? Look no further than Great Western Building Services Ltd. Get in touch with us today for a free estimate.

Read what our customers have to say

Work carried out:

In October 2022 we jointly purchased a 5-bedroom house with the prospect of adding a 6th bedroom and developing the property to make a dwelling for our two families to live together, but with separate living quarters.  The house was in a poor condition with nothing having been developed/improved for some decades.

The plan was to build a large single-story extension across the back of the house providing two living room/kitchen/diners and to convert the garage and utility area into a bedroom and ensuite bathroom.

Communication with builders.

From day one the communication with JP was excellent.  The quotation document was thorough and detailed in the extreme and gave us great confidence that we had made the right choice out of the quotes we had sought.

Throughout the whole 6 month process we were kept well informed, and since we were in temporary accommodation nearby, we were able to visit the site regularly. We got to know JP and the whole team really well and were always welcomed on site.

Where issues arose or choices needed to be made JP helped us with decisions and was always determined to help us achieve the best balance between quality and cost.

JP was also very thorough in communicating with the neighbours who were inevitably affected by a 6-month building project.

Quality of work

At every stage of the build the quality of the workmanship was excellent.  This has been confirmed by friends who know far more about building than we do and who, without exception, make very positive comments when they visit. JP is somewhat of a perfectionist, a very desirable characteristic for a builder!! We can say that the result is pretty much exactly what we had hoped for.

Tidiness of site

By its very nature much of the work created a great deal of rubble and required a never-ending supply of skips.  The team clearly did their utmost to keep all this to a minimum and it was particularly noticeable that on a Friday evening they cleared and cleaned up the frontage of the house to leave things looking as tidy as possible for the weekend.

Value for money

As I hinted earlier, JP is not one to take short cuts to provide a cheaper option. In our various discussions we were confident that we could absolutely rely on him to provide us with an excellent result at the most appropriate price.

Overall

Six months in temporary accommodation whilst waiting for a build to be completed is inevitably unsettling and stressful. JP did everything he could to make the process as stress free as possible – on a couple of occasions he called in on us just to see how we were doing! I am hoping this is the last major building project we will experience, but if anything crops up there is absolutely no doubt about who we will get to do the work!

K. & H. F - November 2022 - April 2023

Adding a 6th bedroom and developing the property to make a dwelling for our two families to live together

We have nothing but the highest praise for Mr. Donovan and his great team.

We had previously selected Great Western Building Services for a small extension to our lounge and hall, which greatly improved our living space. They were not the cheapest, but we were impressed with the quality and detail in their quotation, which gave us great confidence, and we were not disappointed.

When it came to our more recent, and much more ambitious project, we had absolutely no hesitation in inviting GWBS to tender.

The scope of the project was a to be attached to one corner of our bungalow, plus extensive landscaping to the rear of the property. The design of the orangery featured a centrally-located roof lantern in the otherwise tiled sloping roof, and a steel frame, two-tiered to support the roof; steel being required due to the minimal walls and very large windows including full-width bi-fold doors.

The quality of workmanship throughout was outstanding, as was the impressive attention to detail. The site was always kept tidy, the GWBS team were always polite and considerate, and we were always kept informed of plans. Indeed, while we were away on holiday we were even sent photos and a video of the roof lantern being lifted into place by a special crane.

The work was completed on time, despite the challenging heat, which necessitated some unplanned non-working days, and some delays from third parties. It was also completed on budget, allowing for one or two agreed minor changes.

We would have absolutely no hesitation in recommending GWBS.

The L's - 01/08/2023

five meter square sun room plus extensive landscaping to the rear of the property

Very easy and quick to respond to queries. Helpful with suggestions for finishing materials etc.
JP was always very approachable and responsive. He demonstrated different building material options when we had to make a choice. On one occasion he rushed out at 9pm to solve a challenge before kitchen worktops arrived at 9am the next day.
The outdoor crew – Craig, Bill, Lee (and others) were really friendly and polite. They went the extra mile to be helpful and tidied up well at the end of each day.
Excellent quality of workmanship. The exterior build is fantastic – the front porch/hall is impressive, and the rear extension brickwork really matches our existing building. The finish of the patio with its retaining wall is great. The care given to the finish – plastering, windows, doors and kitchen fitting has given us a “show house” feel.
GWBS kept the site as tidy as possible during each phase of the build. Skips were regularly emptied. Materials were kept in prearranged places. The garden was returned to original state as much as possible. When the back house wall was removed the team carefully boarded the gap and re-plumbed the sink further back enabling us to continue living in the house whilst the building was completed.
Not the cheapest quote but by no means the most expensive either. We chose GWBS over other builders as we felt we could work easily with J-P, he was keen to ensure that we ended up with a high-quality extension finished in the style of our choosing. J-P is a rare builder – one who listens to concerns, explains what is going on and genuinely tries to give the best results for the agreed budget. J-P sourced a competitive quote for our outsize windows and patio doors. When we made minor changes, we always felt that J-P did not exploit the alteration but either folded it into his plans or quoted a fair price.
We would be very happy to use GWBS again and recommend them to friends and relations considering building work.

Mrs Helen Greer - 31/01/2022

Large single storey rear extension, extension and remodelling of front porch, patio with retaining wall.

The work from start to finish was done to the highest standard! Punctual, and professional.
JP and his amazing team have created a wonderful extra “living space” for us.
Thanks a bunch JP.
Mrs Carol Woods - March 2020

Garage Conversion.

We were really happy with GWBS and Simon’s work. They were extremely efficient and quick in finishing the job to a very high standard. The space was left meticulously tidy and they carried everything out exactly to schedule.
The plastering finish was perfect and electrics were just as we wanted them to be.
Ms Polly Nuttgens - March 2020

Insulation, plasterboarding, plastering and electrics to small dining room.

On time, very polite, helpful, and tidy.
Cleaned all the rubbish away.
I would definitely recommend them.
Satisfied customer.
Mrs Lee - Sept 2019

Leak on pipe behind wall in hallway.

John Paul and his team did a fantastic job. The extension was built to an excellent standard then JP project managed the fitting of the new kitchen which was made difficult by the numerous delays in deliveries, which he coped with magnificently, being flexible and making sure we were able to use at least part of the kitchen during the process.
Highly recommended.
Mr John Westwood - July 2019

Extension and fitted kitchen

GWS was not the cheapest but we were glad that we picked Jon Paul and his team, they were reliable, clean, tidy and easily overcame some unexpected problems and we were very pleased with the result, and would have no problems recommending them in the future.
Mr Colin Rees - May 2019

Single storey extension and moving existing kitchen into newly created space.

Excellent job, speedily carried out as per agreement.
mark_iv4, 30th Jun, 2016

Build retaining wall in garden

John Paul provided helpful advice on the solution and cost estimates, which we accepted. So the final solution was for 6 pillars.
His brickies turned up on the agreed date and time, did a good job, were very polite, tidy and considerate, working late to finish the job and cleaning up afterwards.
Mr J Burroughs - 25th Jun, 2016

Building three pillars on top of an existing wall

John Paul and his team were brilliant. Truly professional service and a great job. Was really pleased, having searched for ages for a good builder, the wait was worth it as the final job was great. Would recommend these guys 100%.
Marthadolly - 13th May, 2016

Brick wall

So far, so good. Really impressed with the amount of work achieved on the first day, and I will look to provide further feedback once job is completed. GWBS have been professional and courteous from the start, as we negotiated the job, organised the details, to being on site. Always prompt to reply and extremely reliable. I would thoroughly recommend.
L J Taylor - 12th Apr, 2016

Build a brick garage

Started on time, here every day, finished on time, kept to budget, did an amazing job!!! Best builders I have come across in 20 years. Well done and thank you Great Western Builders Swindon. Jason and JP the two owners are a delight to deal with, nothing was too much trouble. I would not hesitate to recommend them and I never thought I would hear myself say that about a builder! I would use them again in a heartbeat. Fairly priced too. Very happy from start to finish.
The_Little_House - 12th Apr, 2016

Summer room

Jean-Paul gave us a very competitive quote for rebuilding the wall at the end of my neighbour’s garden and mine. The work ran to time, where weather permitted, and we are very satisfied with the result. The whole team were friendly, considerate and helpful.
Rod H - 7th Apr, 2016

Rebuild 2 metre high boundary wall

I needed a downstairs toilet put in and GWB were brilliant. They not only put in a toilet but they made a small area of my garage in to a modern and light cloakroom. They were on time, tidy and communicated with me every step of the way. I can’t recommend them enough
Mrs Blake, Swindon

Downstairs cloakroom

I would definitely recommend them.
Miss Natalie Fox, Swindon

Bathroom.

We needed some large porcelain tiles fitted to our kitchen and hall way floors. GWB sorted this out for us, advising us on what we should put under them to give them the best durability. The result is brilliant, in a house so old it doesn’t have a single straight wall, they have managed to lay it so at every angle it looks perfect. I was so impressed we also asked them to fit internal doors through the house and fit some skirting. Again the finished result is great, they were tidy, on time and kept us up to date with how it was all going. I would highly recommend them and will definitely call.
Mr Shane Blake, Swindon

Kitchen flooring and internal doors fitted.

A superb, local building company that I’d highly recommend!
Richard Smith, Cirencester

Single story extension.

Good professional organisation, very impressed with the speed of response to all my questions and happy with the way the job has gone and the standard of workmanship throughout.
simon98070

Bungalow extension

Great experience with these guys from start to finish. The bathroom looks stunning, just as I had envisioined 🙂 it was obvious from the start the main objective from Steve and JP was that I was happy at each stage of the way. Steve is a perfectionist, which is great as I like symmetry. You will receive a fast , efficient, professional service I cannot rate them highly enough. Thanks Guys
lesleym_73

Bathroom Fitting

Brilliant!! Great company and people to work with, my Wife and I are very pleased with the large extension that Great Western Building Services developed at our home – the quality of the build is very good, we would have no hesitation in recommending this company to anyone.
richard_788

Extensions

GWBS Ltd provided us with a competitive quote for a single storey extension to the back and side of our house for a new kitchen, utility room and garage.
Jason Walker project managed the build and trades, from start to finish including fitting the kitchen and flooring. He and his team were very easy to work with; helpful, friendly, trustworthy and very hard working.
All of the team were very communicative, quick to find a positive solution for anything that came up as the work progressed, and willing to go the extra mile to ensure the best possible outcome.
We are very pleased with our new extension.
teamg6

Extensions

Overall they did a very good job and the end result was better than expected. They were a bit untidy, so something to keep an eye on. However they were very responsive to any queries I had.
john_r_90

Extensions

John-Paul, Jason and their team worked very hard on the extension to my bungalow. The bathroom and kitchen have turned out lovely.
As with all building projects we
had one or two problems along the way but were resolved by the team to my satisfaction.
They were helpful when I wanted to have some extra work done outside.
juliar_31

Extensions

After looking for suitable builders for a large extension (2 storey side extension and a single rear) we were impressed with the professional service from John Paul & Jason.
The build was completed at a good speed, the team were open to last minute changes and/or additions with minimal issues and pricing was very competitive.
We love the finish and quality of work carried out and we would recommend GWBS for all building works…

If you need to see any pics of their work then please get in touch, thanks Mr & Mrs Collins, Hilmarton.

michael_collins

Extensions

Very professional company, Excellent work carried out on the garden wall, nothing too much trouble. Craig and John Paul were both a pleasure to deal with.
nmckeating

Bricklaying

From the initial engagement it has been extremely easy to work with the team from Great Western Building Services Ltd. They were competitively priced, prompt to respond and are proactive in bringing a wealth of their experience to our project.

The team are hard working, diligent and professional with a collaborative approach at every stage and this has ensured we have remained on target with timeline, budget and aspirations for the build.

Also very pleased with their continuous drive to deliver a quality build whilst also being considerate of the “fluffy stuff” such as being very personable and keeping the working site orderly.

Happy to recommend.

ceri_pridding

Conversions

GWBS Ltd presented a competitive quote and I choose them above two other builders because they exactly followed the architects drawings in their pricing. The work had to be precise as a pre-manufactured greenhouse was constructed on top of the walls. I was very pleased with standard of work, the ‘can do’ attitude of the work force and their general demeanour.
beadle_71

Bricklaying

We have just had our bathroom redesigned by Great Western Building services and are very pleased with the result. John Paul and Steve kept us informed throughout the process (even when things changed) and were very accommodating with our needs versus what we could have in the room. Steve was very tidy and cleaned up each evening before he left, and removed all of the waste. Would highly recommend as they were friendly, polite and great workmen.
Dawn Gunn

I used GWBS for some work in my garden and was absolutely delighted that I had done so. I found their service extremely professional. John-Paul came round in advance to discuss the work required and not only was their price competitive, it was accurate. John-Paul also offered me some excellent advice for a future garden project! All of the staff (site and office workers) were helpful and courteous. I would definitely recommend.
Mary Smith

I used GWBS for several projects including an on-suite bathroom and some extensive work in my kitchen. I found the team very professional, tidy and kept me informed as they did they work. I live in a very busy street in Bristol were parking is premium and the team always made sure they parked a mile away from the street as not to take up the residents places – which I thought was very considerate of them. I have recommended them to several of my neighbours who I know have been in touch with them. Great job thank you.
Mags Bainbridge

We used GWBS for various projects, the service and quality of work has always been exceptional. There really is no need to look elsewhere. Fantastic company.
Alex Fitzjohn

We used GWBS to tile our kitchen and hall way. The house is very old with uneven everything including the floor and walls. This meant that making the tiles look straight was a difficult job as they run straight through the hall way into the kitchen so are very visible.

GWBS were able to recommend under flooring to level out the floor and protect my Porcelain tiles from snapping (especially if there was further movement of the floor) They then designed a layout of the tiles so that they looked perfectly straight and any joins to do this were hidden under the door way.

They were polite, professional and tidy. They arrived when they said they would and the job was completed within the time frame given.

I would highly recommend GWBS as you certainly get what you pay for.

Blake Fox

Superb experience all round. The quotes were accurate, and competitive, but not the cheapest. However what we got for paying a little more was exceptional planning, build quality, attention to detail, and a great vibe with everyone on site (and neighbours – very importnant). Daily comms gave me really good updates and whenever there was an issue, a knock on the window and we’d sort it out. I’d rather pay a bit more and have this kind of experience. Great also to witness personal safety being discussed. Thoroughly recommend GWBS, JP and his team.
Verified Review

Kitchen extension groundworks and major pitched roof development over old double garage

We are delighted with our extension. JP and the team were excellent throughout, very professional, informative and always ensuring that we were happy with the work being done. We were particularly impressed with the way that they kept the impact on our living accommodation to an absolute minimum. We would not hesitate to recommend GWBS.
Verified Review

Single storey extension to bungalow

We are delighted with our extension. JP and the team were excellent throughout, very professional, informative and always ensuring that we were happy with the work being done. We were particularly impressed with the way that they kept the impact on our living accommodation to an absolute minimum. We would not hesitate to recommend GWBS.
Verified Review

Single storey extension to bungalow

Fantastic job done by conscientious builders polite and excellent time keeping I would recommend them without hesitation
Verified Review

Construction of a brick shed, with security taken into account one secure keylock fitted and a burglar proof latch and padlock

Excellent job done nothing was too much trouble would definitely use again for any building or any household improvements
Verified Review

Laid floor tiles fitted new kitchen sink and sorted out plumbing in kitchen

Despite starting the work during a pandemic, the project ran smoothly due to the teams flexibility. This project was our first extension and we wouldn’t hesitate doing another in the future – the site was tidy, the materials used were the best quality, the guys were highly professional and personable, and importantly the work was completed within budget. The team did everything to ensure the work was completed by the time our baby arrived and kept stress to a minimum. We have had so many compliments – the build looks like it has always been part of the house. Highly recommend!
Verified Review

Large side extension

The work from start to finish was done to the highest standard ! Punctual, and professional JP and his amazing team have created a wonderful extra “living space” for us . Thanks a bunch JP
Verified Review

Garage conversion

We were really happy with GWBS and Simon’s work. They were extremely efficient and quick in finishing the job to a very high standard. The space was left meticulously tidy and they carried everything out exactly to schedule. The plastering finish was perfect and electrics as were just as we wanted them to be.
Verified Review

Insulation, plasterboarding, plastering and electrics to small dining room

On time, very polite,helpful, and tidy .Cleaned all the rubbish away.I would definitely recommend them.Satified customer.
Verified Review

Leak on pipe behind wall in hallway.

Get in touch with professional extension builders in Swindon. Contact Great Western Building Services Ltd on
07860 247 430 or 01793 764 139

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