Extension Builders in Upminster

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 3.8 (20 reviews)

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Some of our top rated extension builders in Upminster

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SIDDH GLAZING LTD
Rating: 5 out of 5
Extension Builder in Upminster
WE ARE A UPVC AND ALUMINIUM DOOR ,WINDOW BIFOLD MANUFACTURERS .
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Latest review:
Nice and clean job and finished on time
AJ Partners Ltd
Rating: 5 out of 5
Extension Builder in Upminster
We are family business working in different levels of building industry. Refurbishment, supply and fit and installation service. Carpenter, Joinery, Tiling, Plumbing, etc. Supply or supply and fit, refurbish and new build We completed various projects in London and surrounding areas We listen to our clients needs and liaise with you throughout your project to ensure that the project finishes on time and on budget. Trades 15 Years of experience and good reviews leads our work.
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Latest review:
Kitchen Fitting- 7 Jun 2020
We liked Alex from the first meeting and the first impression was spot on. Alex did an amazing job on our kitchen, which was half initiated by another tradesman. He reviewed the work and fixed many issues, always explaining and communicating well. Our kitchen had to be adapted and had some non standard cabinets but Alex was able to do all the additional features we asked for and with a great result. He also recommended some design changes which we agreed to and love. He finished the work, reviewed everything and signed off, always with a smile which is a plus. Definitely highly recommended and we will call him again in the future for sure. Thank you Alex!
Steve Holland
Rating: 5 out of 5
Extension Builder in Upminster
I am a highly skilled and professional builder, I have been bricklaying for 22 years and served a 3 year apprenticeship. I have a great deal of experience in all aspects of building work and although bricklaying is my main trade I'm a skilled multi trader and have built many extensions/houses.
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Latest review:
Groundwork & Foundations- 5 Feb 2017
good job done ...would use again
Amazing constructions limited
Rating: 5 out of 5
Extension Builder in Upminster
we are specialised-Loft conversion, Extension, Brick work, Plumbing, Electric, Roofing, Bathroom, Tiling, kitchen, Flooring, Paint, and have experience of 15 years.
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Latest review:
Extensions- 10 May 2021
Very Professional and diligent service, even though was hard to get materials because the job was done at the peak of the pandemic, still they managed to sort things out. The job was so nicely done that all the tenant who viewed the house wanted to rent it. I have even given them another job would certainly recommend.
Construction Crafters
Rating: 5 out of 5
Extension Builder in Upminster
At Construction Crafters we pride ourselves on being builders that are synonymous with high quality skilled craftsmanship providing a full range building in the local area, from renovation to restoration, no matter how big or small your project is, our approach is always focused and with true attention to detail.If you are trying to find a builder near you, why not give us a call? Our friendly, professional team will be happy to talk through your needs and give you a free, no-obligation quote.
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Latest review:
Bricklaying- 1 Sep 2021
Construction Crafters Very good from start to finish nothing was too much extremely professional and highly skilled all round builders honestly ⭐️⭐️⭐️⭐️⭐️
G lofts (gra)
Rating: 5 out of 5
Extension Builder in Upminster
G LOFTS is part of G R Associates building contractors and as been trading for approx- 36 years + within the construction trade Most types of works is under taken from kitchen fitting bathroom fit outs and loft and flat conversion.
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Latest review:
Extensions- 8 Sep 2021
Done an amazing job on my outer building. George and his son Steven went the extra mile. Will definitely be using them for all the house works in the future. Very knowledgeable and honest. Would highly recommend GRA.
Pavdeja brother construction ltd
Rating: 5 out of 5
Extension Builder in Upminster
We are a team of experienced, enthusiastic and reliable workers with project managers who work with you from start to finish. Our extensive team holds many years of experience in the construction, development and refurbishment field and aim to provide the best results for your property at competitive prices! We offer the following services: Full refurbishment Interior and exterior Bathroom fitting Kitchens Plastering Painting and decorating Extensions Loft conversion Plumbing
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Latest review:
Plastering- 3 Jun 2025
Edar and his team were excellent from start to finish. Very professional and I’d definitely hire them again and recommend their service to others. Thanks Edar and the team.
Optimal Builders limited
Rating: 5 out of 5
Extension Builder in Upminster
16 Years of experience, specialised in Extensions, Lofts and house refurbishments. We are focus on Client's satisfaction, value engineering and transparency. We use only inhouse teams with dedicated Project Managers, Quantity surveyors and estimators. Flexible and compromisers when it's necessary.
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Latest review:
Extensions- 16 Oct 2020
Amazing builder! Completed a rear extension for our house, very skillful team, friendly and fair price. Would highly recommend Optimal Builders for small and big property improvements.
Mcd paving & landscaping
Rating: 4 out of 5
Extension Builder in Upminster
I have over 35 years experience in all aspects of building and landscaping,,including new driveways, fencing groundwork’s, ie new foundations, drainage , sub floors,
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Latest review:
Fencing- 13 Jun 2026
Went very well
Kameron Whiting
Rating: 4.8 out of 5
Extension Builder in Upminster
Whiting Building Company Specialise in Roofing. If your in need of a Roof Repair or Replacement and you are worried about getting a Cowboy that takes your money and doesn’t fix the problem. 🤠 Well worry No more, as we are the best in the Business and we will solve the issue and show you the evidence after to prove it. 📸 But we don’t just stop there we do so much more without dropping our high standards. 👌🏼 So what are you waiting for…👇🏼 Get yourself a Free Quote Now!!! www whitingbuild com ☝🏼☝🏼☝🏼☝🏼☝🏼☝🏼☝🏼☝🏼
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Latest review:
Bricklaying- 18 Mar 2023
Kameron was great. Will definitely use him again.
Jagdeep Singh
Rating: 5 out of 5
Extension Builder in Upminster
Hi,contact us for any type of building work
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Latest review:
Extensions- 8 Dec 2023
I recently had the pleasure of accepting Jagdeep on a substantial renovation project. Initially, I was a bit apprehensive as there were no existing reviews to gauge his work. However, after seeing some of his previous projects, I decided to take a leap of faith - and it turned out to be the best decision I've ever made. Jagdeep's approach to our project, which started merely as a rear extension and shower room, was nothing short of exceptional. His remarkable craftsmanship and attention to detail soon convinced me and my wife to extend the scope to a full renovation. Throughout the process, Jagdeep and his team displayed an extraordinary level of skill, professionalism, hard work as well as trust (very rare these days). No task was too challenging, and his willingness to prioritise our needs and provide thoughtful advice was truly comforting. It's rare to find a builder with such dedication and expertise. Jagdeep is undoubtedly one of the best builders I have encountered. My heartfelt thanks to Jagdeep and his team for their outstanding work. Rest assured, for any future projects, he will be the first person I call. Thank you, Jagdeep, for turning our vision into reality, which more than exceeded our expectations!
AP Brothers LTD
Rating: 5 out of 5
Extension Builder in Upminster
AP Brothers Builders is a well-established construction company with over 10 years of experience. As trusted builders in Romford, we deliver high-quality workmanship and reliable building services for homeowners across Romford and neighbouring areas. We specialise in loft conversions, house extensions, garage conversions, outbuildings and summer house extensions, patios and driveways, bathroom renovations, and kitchen fitting and installation. From additional living space to complete home improvements, we provide tailored solutions designed around your property and budget. Our local builders cover Romford, Gidea Park, Upminster, Hornchurch, Emerson Park, Goodmayes, Chigwell and surrounding areas, offering professional service, attention to detail and a commitment to customer satisfaction on every project.
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Latest review:
Amazing workmanship and attention to detail for my complete rebuild of house. New two story side and rear extension with new roof and complete internal rebuild was completed on time and in budget agreed. He takes pride in his work and never cuts any corner. Do not think twice and sign him up if he is available to do your job.
Truly Served
Rating: 5 out of 5
Extension Builder in Upminster
We do all types of building work including extension,plumbing, electric,wood work etc. but our specialty is bathroom and kitchen fitting. We are passionate, hardworking, punctual and reasonable in price. We keep monitoring on all aspects and finishes of project up to end.
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Latest review:
Kitchen Fitting- 20 Dec 2025
Great service from the builder. He listened to everything that I wanted & provided really helpful advice. He completed the job to a great standard and am really happy with the results. I wanted new kitchen countertops and electric hob/sink and tap fitted instead of remodelling my whole kitchen. I also felt very safe with leaving him to work alone in my house. Would recommend and use again. Thank you!
Arben Veizi
Rating: 5 out of 5
Extension Builder in Upminster
My name is Arben from Benveizi Construction Ltd. With over 20 years of experience in the construction industry, we specialise in groundworks, hard landscaping, and residential extensions. Our services include excavation, foundations, drainage, patios, driveways, and structural building work. We are committed to delivering high-quality workmanship with a strong focus on safety, precision, and reliability from start to finish.
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Latest review:
Landscaping- 1 May 2026
The job went soo smoothly, Arben is extremely efficient and his work is excellent. He gets the job done smoothly and to an excellent standard. I highly recommmend and have told all my friends and family about his work
TOP BUILDERS LONDON LTD
Rating: 5 out of 5
Extension Builder in Upminster
About Us We have had the privilege of working with numerous reputable companies in both residential and commercial sectors. At TOP BUILDERS LONDON, our unwavering commitment lies in comprehending and fulfilling our clients’ distinct requirements. We excel in overseeing all aspects of property maintenance, ranging from minor repairs to extensive refurbishment projects. Our devoted team takes immense pride in their work, catering to our clients’ needs with utmost dedication.
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Latest review:
Demolition- 30 Apr 2024
Excellent Customer Service. Did a wonderful job for my shed removal and was very reasonable and pleasant. Thank you very much Fatos.
CRI ltd
Rating: 5 out of 5
Extension Builder in Upminster
With over 40 years experience, CRI can handle any complex assignment. Cost reduction and goal achieving in a timely and efficient manner. We undertake in any of the following: - General house/garden maintenance - Building extensions - Install of insulation - Stud partition walls - Suspended, gridded ceilings - Renewal of plasterboard ceiling/walls - Downlighting and spotlights - Certified electrician - Painting and decorating
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Latest review:
Restoration & Refurbishment- 21 Jul 2025
Despite the fact that CRI was a new member on the app with very few reviews, Jon came across very professional and accommodating and priced the job swiftly and fairly. I took a pun and awarded CRI the job. It took circa 2weeks and during this time Jon and the team where exceptional. In order to catch up and meet deadlines they were more than happy to do full weekends and always left the site clean and tidy. During the works, the team always kept me in the loop with photo updates on whatapp and next steps. I would highly recommend CRI.

3.8

Top rated Extension Builders

Our Extension Builders in Upminster, are rated 3.8 out of 5 based on 20 reviews from customers like you.

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What types of services are offered by local extension builders in Upminster?

Building an extension is a major milestone for any home. It’s not just about adding extra space, it’s a big step that can transform how you live day to day, opening up new possibilities for comfort, lifestyle, and family needs.

This is why it’s so important to find the right extension builders in Upminster for you. They can help with a variety of tasks and projects, including:

Extending your home with an extra room
Two+ storey extensions
Adding partition walls to create more rooms
Building annexes or external structures

To find the right extension builder near you, simply post your job on MyBuilder. Explain the type of help you’re looking for, and then home extension builders in Upminster who are available and interested can respond to your post.

Browse profiles, read customer reviews and get quotes from your chosen Upminster extension builders, all before you decide who to hire.

What are the hourly rates of extension builders in Upminster?

Before getting started with your extension project, it’s important to have a clear budget in place. On average, extension builders in Upminster will charge between £16 and £42 per hour.

Single-storey rear extensions cost between £20,000 and £60,000 depending on size and finish.
The cost of double-storey extensions, which add more space and value, can range from £100,000 to over £170,000.
Larger wrap-around extensions that combine multiple extension types can range from £40,000 to over £120,000.

The cost of an extension will vary depending on your property. For instance, extending in certain areas may require structural adjustments to ensure stability, which can increase your material and labour costs.

To get an accurate price for your home extension, request detailed quotes from several Upminster extension builders near you on MyBuilder. This allows you to compare what each quote covers and how much your Upminster home extension project is likely to cost.

Find extension builders in Upminster with MyBuilder

Hiring the right extension builder in Upminster with MyBuilder couldn’t be easier. Just follow these simple steps:

Step 1: Post your extension project on MyBuilder

Whether you’re planning a single-storey extension, a loft conversion, or adding a new room, post your job on MyBuilder to find local Upminster extension builders. Once your job is live, we’ll share it with home extension builders in Upminster who can express their interest.

Step 2: Compare different extension builders in Upminster

When you start receiving interest, review profiles of local Upminster extension builders, check their previous work, and read real customer reviews. Ask about timelines, materials, and request detailed quotes.

Step 3: Hire Upminster extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in Upminster, compare their experience, guarantees, and costs before choosing who to hire.

You’ll also have confidence knowing that every tradesperson on MyBuilder is verified through several checks, including:

ID verification: When a tradesperson joins MyBuilder, we ask for a valid ID, such as a passport, ID card, or eIDAS certificate.
Company verification: For tradespeople operating under a company, we make sure every tradesperson has a registered business.

Did you know? Our continuous monitoring and complaints process ensures that tradespeople who don’t meet our standards are promptly removed from MyBuilder’s platform.

Upminster extension builders are ready to help. Use MyBuilder today to find the right professional for your home extension.

What to ask a Upminster extension builder before hiring?

Before hiring an extension builder in Upminster or extension building company in Upminster, ask a few key questions to make sure you’re choosing the right professional for your home extension project.

What qualifications and experience do you have as an extension builder in Upminster?

An extension builder in Upminster should have a strong track record with similar projects and relevant building qualifications or trade memberships, such as the Federation of Master Builders (FMB) or TrustMark.

Will my home extension meet all building regulations and planning requirements?

Your Upminster extension builder should ensure the project complies with Building Regulations and, where necessary, handle or assist with planning permissions. Ask how they manage building control inspections and what documentation you’ll receive once the project is complete.

What experience do you have with similar extensions in Upminster?

Ask to see examples of their previous work, or view examples of their work on MyBuilder. Ideally projects similar to yours in scale and design. This helps you assess the Upminster extension builder’s ability to deliver a result that meets your expectations.

How long will the extension take to complete?

Extension project timelines can vary depending on size, complexity, and weather. A typical single-storey extension might take around 8 - 12 weeks. Request a detailed schedule so you know what to expect and when key milestones will be reached.

Do you offer a guarantee for your work? Most Upminster extension builders offer a guarantee or warranty on their work, often between 1 and 10 years depending on the project and materials used. This gives you assurance that any issues will be resolved after completion.

If you still have questions about the professional you are looking to hire, we have a full detailed guide on hiring the right builder here.

FAQ: Common questions about home extensions in Upminster

Can an extension builder in Upminster help with planning permission?

Yes, many extension builders in Upminster can guide you through the planning process. They can help prepare drawings, advise on local requirements, and liaise with your local council to ensure your project meets all necessary regulations.

Can an extension builder in Upminster handle everything from design to construction?

Many Upminster extension builders offer full design-and-build services, managing both the architectural planning and construction stages. Ask your builder whether they can provide a complete package or if you’ll need to hire an architect or designer separately.

Will an extension builder in Upminster help with materials and finishes?

Yes, most extension builders in Upminster can source materials and offer advice on finishes that suit your design and budget. You can also choose to supply certain materials yourself, just make sure this is agreed upon before work starts.