Extension builders in Rainham

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.3 (16 reviews)

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Some of our top rated extension builders in Rainham

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LA LONDON GROUP LIMITED
No reviews yet
Extension Builder in Rainham
WE ARE CONSTRACTION COMPANY .EXPERTS ON THE NEW BUILD FLATS AND HOUSES.
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AMG CARPENTRY (SE) LTD
No reviews yet
Extension Builder in Rainham
We undertake all aspects of carpentry and construction, loft conversions, 2nd fix, 1st fix, roofing, cut roofs, truss roofs, garden rooms, outbuildings, annex, extensions, flat roofs, bespoke carpentry, wardrobes, stairs
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Arworks
No reviews yet
Extension Builder in Rainham
I have had the privilege of working on a 260-year-old Grade Listed building in Islington, London, under the close supervision of conservation inspectors. This project required a careful balance of tradition and innovation — I combined the use of modern machinery externally with traditional, delicate methods internally to ensure the building remained completely scratch-free. My experience has given me a deep respect for heritage projects as well as the skills to deliver high-quality results on modern refurbishments.
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A S Builders
Rating: 5 out of 5
Extension Builder in Rainham
We are a family run business in construction industry since 1990, initially started by my father and now his sons have joined the business and looking to revitalised the business through the use of up-to-date technology. We undertake all types of building work through our team of skilled labour from a small job up to New Build. Our most recent job was conversion of a detached property to 7 HMO's.
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Latest review:
Extensions- 29 Apr 2026
Heera, Jagthar and team was my first personal experience with builders. Let me tell you, it was a pleasure to have them do our porch and other renovations in the house. They are so courteous, hard working and provided a great service. Firstly, I had a comprehensively written quote breaking down all of the steps required. Heera then ensured to keep me in the loop of any developments/any changes of plan required, outlining the reasons why and options, making it easy to understand and work together to completion. Their finish was to a high quality and they would always go the extra step to ensure this. I highly recommend AS Builders for any job and will definitely use them again in the future, and would recommend to my friends and family also. If you are considering them, grab a free quote and go from there... That's what I did! Thank you AS Builders for our renovations!
Cadessa Ltd
No reviews yet
Extension Builder in Rainham
Cadessa Ltd specialises in domestic and commercial extensions, refurbishments and property alterations. We work closely with homeowners, landlords, businesses and commercial clients to improve, modernise and add value to their properties. Our services include: * Domestic and commercial extensions * Full and partial refurbishments * Internal alterations * Property improvements * General building work We provide clear communication throughout every project and aim to complete each job to a high standard, with a tidy, reliable and professional approach. Contact us to discuss your project and arrange a quotation. www.meath.group
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CPR (Complete Property Renovations)
No reviews yet
Extension Builder in Rainham
CPR (Complete Property Renovations) is a professional property renovation company specializing in complete renovation solutions for residential and commercial properties. We deliver high-quality workmanship across every stage of the renovation process, from initial demolition and structural alterations to the final finishing touches. Our services include kitchen and bathroom renovations, flooring installation, painting and decorating, electrical and plumbing works, interior refurbishment, and complete property fit-outs. Whether you’re renovating a house, apartment, office, or retail space, we are committed to delivering reliable, efficient, and high-quality results tailored to your needs.
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ALB engineering services ltd
No reviews yet
Extension Builder in Rainham
I am a hard working, honest individual. I am a good timekeeper, always willing to learn new skills. I am friendly, helpful and polite, have a good sense of humour. I am able to work independently in busy environments and also within a team setting. I am outgoing and tactful, and able to listen effectively when solving problems.
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ELIOTT
No reviews yet
Extension Builder in Rainham
Specialise in all kinds of brickwork/landscaping. General house maintenance ,garden maintenance,pond building,fencing. with over 20 years experience take pride in my work and my trades,always in a professional manner
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Smart windows
Rating: 5 out of 5
Extension Builder in Rainham
Smart windows from MKD windows Group are a family run business covering Essex and Surrey. We specialise in UPVC , Wood & Aluminium. Offering quality products at quality prices. Reliable service, no pushy salespeople just a straight forward price! Certass registered with a 10 year insurance backed guarantee.
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Latest review:
Windows & Doors (uPVC & Metal)- 13 Mar 2026
Would highly recommend Dean, he removed my window and fitted French doors. Thank you.
The build guys ltd
No reviews yet
Extension Builder in Rainham
We do extensions, loft conversions,gardens driveways , refurbishment
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Glazify ltd
Rating: 5 out of 5
Extension Builder in Rainham
UK glazing specialist with over 15 years of experience in the field. Supply & fitting of windows and doors, bi-folding and patio doors, skylights, conservatories, porches, internal doors and other double glazing units. Competitive prices, outstanding quality, can-do attitude, extensive experience in dealing with the most challenging installations. FENSA Approved Installer, Insurance Backed Guarantee, Public Liability Insurance & 10-year warranty on all works.
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Latest review:
Windows & Doors (uPVC & Metal)- 15 Oct 2026
Jassi and his team were very professional and completed the job in good time and with cleanliness. Would recommend.
IOAN MAGHIS
No reviews yet
Extension Builder in Rainham
- 15 years in construction industry - general builder - NVQ level 2 bricklaying -
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Jobbs
No reviews yet
Extension Builder in Rainham
We do all different types of work, best work is interior flooring, wood, laminate, vinyl, concrete and self levelling screeds all types of interior and exterior painting, wallpapering , decorating and handyman jobs. We have been working with mainly residential properties but have also done some office dilapidations and office fitouts in commercial buildings too. Our strengths are on working with our clients to help them achieve their vision. We are a different type of builder.
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dream build construction
No reviews yet
Extension Builder in Rainham
Extensions,general building work,loft conversion, Garden walls, patios
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A1
Rating: 4.8 out of 5
Extension Builder in Rainham
Hi i m Gurlal singh We are available 24 hour
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Latest review:
Plumbing- 5 May 2025
On time and great work ethic would truly recommend
Plasterer
Rating: 5 out of 5
Extension Builder in Rainham
With over 9 years experience and a real focus on customer satisfaction, our team of experienced professionals will produce a smooth finish every time on your walls and ceilings. We also do all aspects of rendering and EWI SISTEM (external wall insulation ). Always on time and on budget.
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Latest review:
Insulation- 5 Sep 2024
Fantastic work by Andrei, Ciprian and their team. Highly skilled and hard working team, starting on time (8am) every day and working until late, clear communication as the job was progressing, clear and fair pricing, attentive to details, and happy to accommodate non-standard request like 100mm EWI. Highly recommended!

4.3

Top rated Extension Builders

Our Extension Builders in Rainham, are rated 4.3 out of 5 based on 16 reviews from customers like you.

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

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 Rainham 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 Rainham who are available and interested can respond to your post.

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

What are the hourly rates of extension builders in Rainham?

Before getting started with your extension project, it’s important to have a clear budget in place. On average, extension builders in Rainham 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 Rainham extension builders near you on MyBuilder. This allows you to compare what each quote covers and how much your Rainham home extension project is likely to cost.

Find extension builders in Rainham with MyBuilder

Hiring the right extension builder in Rainham 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 Rainham extension builders. Once your job is live, we’ll share it with home extension builders in Rainham who can express their interest.

Step 2: Compare different extension builders in Rainham

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

Step 3: Hire Rainham extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in Rainham, 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.

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

What to ask a Rainham extension builder before hiring?

Before hiring an extension builder in Rainham or extension building company in Rainham, 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 Rainham?

An extension builder in Rainham 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 Rainham 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 Rainham?

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 Rainham 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 Rainham 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 Rainham

Can an extension builder in Rainham help with planning permission?

Yes, many extension builders in Rainham 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 Rainham handle everything from design to construction?

Many Rainham 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 Rainham help with materials and finishes?

Yes, most extension builders in Rainham 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.