Extension builders in Washington

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.5 (8 reviews)

Easily find verified Washington Extension Builders. Just post your job to get quotes from MyBuilder's Extension Builders in Washington.

Select a service

How it works

Post your job for free

Tell us about your job, and we’ll alert suitable tradespeople in your area. It’s simple and free.

Tradespeople respond

Once your job is posted, you’ll get responses from interested tradespeople through the website.

Review profiles and choose

Browse profiles, work history, and feedback, then choose who you wish to share your details with.

Some of our top rated extension builders in Washington

315 Results

Sort by:

N e build and design
No reviews yet
Extension Builder in Washington
We undertake small to large building projects , house extensions, roofing, steel work, property maintenance,insurance work, project management,double glazing etc . I have 36 years building experience with a large spectrum of knowledge within the industry.
Get in touch
Dexter Renovations ltd
New on MyBuilder
Extension Builder in Washington
Dexter Renovations Ltd is a trusted renovation and building company serving Newcastle and the surrounding areas. We specialise in property renovations, extensions, joinery, kitchens, bathrooms and general building work. Combining quality workmanship, attention to detail and dependable service, we deliver durable results tailored to each customer’s needs. Whether you’re planning a small renovation or a larger project, our experienced team works closely with you from start to finish to achieve a professional finish you’ll be proud of.
Get in touch
RBS
No reviews yet
Extension Builder in Washington
We're a building services specialist based in North East, England helping commercial and domestic customers with projects of all shapes and sizes, from small refurbishments to large scale construction projects covering the North East area.
Get in touch
Shaun davies ltd
No reviews yet
Extension Builder in Washington
Shaun davies construction prides it’s self on the hights of standard of workmanship in anything we do from the smalles of job to full projects ranging from groundwork’s to brickwork demolition to small repairs willing to go out of our way to make a project happen with the customers budget and time scale always in mind
Get in touch
Quinn Construction
No reviews yet
Extension Builder in Washington
Hi I'm Brett from Quinn Construction I have over 25 years experience in the building industry I specialize in all aspects of brickwork eg extension's new builds and garden walls ect. I take a lot of pride in my work and have a very strong work ethic with a very high attention to detail. It's important to me that every customer is left with full satisfaction of my work. I am very reliable, trustworthy with a very professional and positive attitude.
Get in touch
Northern Countries Construction & Groundworks
Rating: 5 out of 5
Extension Builder in Washington
Dear Customer Welcome to our Page Your business is very important to us As a Experienced Contractor we serve the Public & Commercial Sector !! We Work Nationwide 7 days a week 365 days Year !! We offer Discount !! Fully Guaranteed Work. Construction and New Builds Extensions Brick & Block Work Retaining Walls Drop Kerb Specialists - £10Mil Public Liability Insurance and Street works Accreditations We are on Various Council Approved Contractor lists. We can deal with council on your behalf and deal with all the Applications and Permits . North Tyneside Council Hartlepool Council Gateshead Council Nottinghamshire Council Stockton Council Workington Council Northumberland Council We are Nationwide EV Electric Charging Point Contractors for Domestic & Commercial Specialist Gravel Drive way Installers We Provide Specialist Soakaway Drive ways Groundworks & Site Clearance Drainage works & Deep Drainage / S106 Approved Contractor for New Sewer Connections Yorkshire Water Approved United Utilities Approved Concrete Works & Slabs Site Clearance Works Tarmac & Reinstatements Works / Pot Holes Resurfacing works / Machine laid Car parks Demolition & Soft Strip Works Utility's - GAS - WATER & ELECTRIC Mini Digger Hire with Operator Skilled Labour to Hire on Day Rate QUALITY THAT DOESN'T COST THE EARTH
Get in touch
Latest review:
Driveways (Paved & Loose)- 18 Oct 2026
Excellent job from Mark. He arrived on the agreed day, stuck to the timings he gave me, and finished the work to a really high standard. The site was left neat and clean, and the tarmac is smooth and well laid. Communication was good throughout, the price was fair and exactly as agreed. I'd have no hesitation recommending him and will definitely use him again.
AC groundworks & building
No reviews yet
Extension Builder in Washington
all types off ground works and building flagging theres no job to be or to small all work done to top standard indian sandstone driveways block paving concrete concrete printing porcelain tiles curbs tarmac drainage artificial grass full garden clearances fencing decking hedge trimming gardening tree surgeon extensions Roof repairs Full flat roofs gutters fascias and soffits pointing Slating & Tiling lead work
Get in touch
Arnold Gaffney Building Services
No reviews yet
Extension Builder in Washington
I have been in building trade for nearly 30 years and do everything from extensions to loft conversions to revites
Get in touch
Winstanley Building & Landscaping
Rating: 5 out of 5
Extension Builder in Washington
Hi, We are a Building and Landscaping based in Hartlepool working in all areas of the North East and surrounding areas. We love to create something for our customers to continue to love in there homes and outdoor living spaces. Get in touch with us for a friendly service and a stress free working environment to your home.
Get in touch
Latest review:
Bricklaying- 2 Oct 2018
Carl was very professional and friendly from start to finish. We needed the job doing fairly quickly and Carl did just that...responded to the ad very quickly,he came to price up on a Sunday afternoon and it was completed on the following Wednesday. The price was very reasonable and we were happy to go ahead. He was helpful, knowledgeable, nothing was too much trouble and he cleaned up afterwards. The job was completed to a high standard and we wouldn't hesitate to recommend or call him back for any other work we may need in the future. Great job Carl!
Building solutions
No reviews yet
Extension Builder in Washington
We are a fast moving dynamic company who have grew massively over the years, mainly due to our customer care and attention to detail. We pride ourselves with giving every job the same level of attention there is no job too small and we haven't found a job that's been too big. With a vast amount of tradesman at our disposal and close working partners any problem is solved. We will manage any job start to finish giving you the stress free solution you need. Commercial, domestic, simple fixes, full refurbishment,inside,outside. Give us a call we have the solution.
Get in touch
Rapier Construction Ltd
No reviews yet
Extension Builder in Washington
House extensions, internal alterations, maintenance, complete design and construction of new properties. Electrical Division: Electrical inspection & Testing, Rewiring & Certification Extra sockets/lights etc, Consumer Unit (fuse box) Upgrades Garden lighting/features etc Security Systems, Security Lighting, Alarm Systems Fire/Smoke Detection Fault-finding Smart Homes LCD/Plasma TV Installation
Get in touch
LW Building Solutions ltd
No reviews yet
Extension Builder in Washington
We are a small business with a big reputation covering all of the north east. We take a lot of pride in our work covering a large range of building.
Get in touch
CDS Builders and Joiners
Rating: 4.7 out of 5
Extension Builder in Washington
My company prides itself on being a small, family-run company. We have high standards and due to our size, our reputation is important to us. The majority of our work is the word of mouth as we find our previous employers are more than happy to recommend us to their family, friends, and neighbors. References are always available when requested.
Get in touch
Latest review:
Restoration & Refurbishment- 7 Jun 2024
Callum and Darren were exceptional. The quality of the refurb has been exactly what I wanted. The main thing I liked about CDS is the honesty and transparency. These are good guys and I will work with CDS again! 10/10
John Kerry Decor
Rating: 5 out of 5
Extension Builder in Washington
Established in 2000 and based in Teeside, A member of the Painting & Decorating Association John Kerry is a time served, City & Guilds qualified tradesman with a number of prestigious clients including Gilly's Amusements chain,York House Hotel/Caravan Park Whitby, Progress Financial Services ,Calor Gas , Phototronics, Cochranes Solicitors and TFM Radio's Antony Collins. What We Do --------------------------------- All aspects of decorating covered, paper hanging,emulsioning,gloss work ,etc. Fully CRB checked, reliable, punctual and offering competitive rates for a first class job, John Kerry is your first choice for all your private and commercial work... whether it's simply one room that you need decorating or an entire building to be refurbished, no job is too big or too small! Now offers small building works eg.garden walls,fencing,guttering,tiling,joinery,decking ,etc. We have a time servred Brick layer joined the company to offer extra services. Work History --------------------------------- Number of prestigious clients including Gilly's Amusements chain,Progress Financial Services ,Calor Gas, Phototronics, Cochranes Solicitors and TFM Radio's Antony Collins.
Get in touch
Latest review:
If you want a tradesman who takes pride in his work look no further, very polite friendly and tidy but his work is second to none, you wont find any faults with his workmanship which is hard to find these days with so many cowboys out there, I would highly recommend John Kerry and would like to thank him once again for one hell of a excellent job.
Wilkinson building
Rating: 5 out of 5
Extension Builder in Washington
Over 20 years experience in bricklaying. Extensions. Garrages. New builds. Patios and garden landscapes. Stone work. Concreting. From digging out to roof tops. We cover all aspects.
Get in touch
Latest review:
Repointing- 30 Nov 2024
Very happy with the finished job. Arrived on time, very pleasant, completed work to a very good standard at a good price. Would use again.
J Crowther Building Services
New on MyBuilder
Extension Builder in Washington
J Crowther Building Services J Crowther Building Services is a reliable, professional building company specialising in brickwork, stonework and general building services. We undertake a range of domestic building projects, from brick and stone garden walls, extensions and repointing to patios, paving, fencing and other masonry work. We pride ourselves on quality workmanship, attention to detail and providing a reliable service from start to finish. We work closely with customers to deliver a high-quality finish that meets their requirements and stands the test of time. Based in County Durham, we cover Bishop Auckland and surrounding areas, with travel available for larger projects.
Get in touch

4.5

Top rated Extension Builders

Our Extension Builders in Washington, are rated 4.5 out of 5 based on 8 reviews from customers like you.

Quality screening

Easily find verified local tradespeople. Just post your job to get quotes from tradespeople near you across the UK.

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

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

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

What are the hourly rates of extension builders in Washington?

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

Find extension builders in Washington with MyBuilder

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

Step 2: Compare different extension builders in Washington

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

Step 3: Hire Washington extension builders with confidence

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

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

What to ask a Washington extension builder before hiring?

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

An extension builder in Washington 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 Washington 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 Washington?

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 Washington 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 Washington 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 Washington

Can an extension builder in Washington help with planning permission?

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

Many Washington 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 Washington help with materials and finishes?

Yes, most extension builders in Washington 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.