House Extensions
Single storey, double storey, rear and wrap-around extensions across Leigh.
Learn more →Builders Leigh
KJL Builders are local, fully insured builders covering Leigh and the surrounding areas — house extensions, knock throughs, garage conversions, porches, bricklaying, garden walls, kitchen renovations, loft conversions and commercial building work, all professionally managed from first quote to final finish.
WN7
Request Your Free Leigh Quote
Fill in the form below with a few details about your Leigh project and we'll get back to you with a free, no-obligation quote.
We'll never share your details with anyone else. By submitting this form you agree to be contacted by KJL Builders about your enquiry. This form uses a mailto: fallback which opens your email client — swap it for Duda's native Form element for silent, no-email-client submission.
Local Builders Who Know Leigh
Leigh has a wide mix of property styles, from period terraces and semis to inter-war housing, post-war estates and newer developments — and each comes with its own considerations when extending, converting or renovating. Having worked across Leigh and the surrounding areas, we understand the construction challenges that different types of properties can present and what's required to keep projects running smoothly through building control and achieve sign-off from Leigh Council without unnecessary delays.
Fully Insured
Complete protection for your property and our team throughout the work.
Local Leigh Knowledge
Experience with the area's period terraces, semis, post-war estates and newer developments.
All Leigh Postcodes Covered
From the centre of Leigh out to Bedford, Pennington, Westleigh and beyond.
Transparent Pricing
Clear, fair quotes with no hidden costs before any work begins.
Building Control & Regulations
We liaise directly with Leigh Council building control, architects and structural engineers, and can source these professionals for you.
Pay As You Build
We don't take large payments up front — payments are staged against completed, inspected work.
Our Services in Leigh
Every building service we offer, available right across Leigh.
Knock Through
Structural wall removal and steel beam installation for open-plan Leigh homes.
Learn more →Garage Conversions
Turn your Leigh garage into an office, bedroom, gym or extra living space.
Learn more →Porches
Open, enclosed and gable-fronted porches that suit the area's terraces and semis.
Learn more →Bricklaying Contractors
New brickwork, blockwork, repairs and repointing matched to the local period brick.
Learn more →Garden Walls
Boundary walls, retaining walls and brick garden walls built to last.
Learn more →Commercial Builders
Brickwork, steel installation, dry lining, plastering and painting for Leigh businesses.
Learn more →Kitchen Fitters
Full kitchen renovations and fitted installations for homes across Leigh.
Learn more →Loft Conversions
Dormer, Velux and hip-to-gable loft conversions, loft boarding and loft bedrooms, offices and ensuites for homes across Leigh.
Learn more →Leigh Postcodes & Areas We Cover
We cover every Leigh postcode district — from the centre out to the surrounding areas. Here's a full breakdown of the areas within each postcode.
| Postcode | Areas Covered |
|---|---|
| WN7 | Leigh Town Centre, Hope Carr, Landside, Low Common, Bedford, Westleigh, Pennington, Higher Folds |
Don't see your exact street listed? We cover the whole of Leigh — get in touch and we'll confirm we cover your postcode.
Cost of Building Work in Leigh
Costs vary by property type and the scale of work — a period terrace or a semi in Leigh will differ from a new-build. Here's a rough guide to help with budgeting; we recommend a site visit for an accurate quote.
£1,500 – £10,000
Smaller Projects
Porches, garden walls, bricklaying repairs and small garage conversions.
£10,000 – £30,000
Mid-Size Projects
Knock throughs, full garage conversions and single storey extensions.
£30,000+
Larger Projects
Double storey extensions, wrap-around extensions and commercial fit-outs.
For an accurate estimate, we recommend requesting a personalised quote based on your Leigh property and project requirements. Get in touch →
Also Covering the Areas Around Leigh
As well as Leigh itself, we cover the surrounding towns and areas, including:
Our Process for Leigh Projects
A clear, structured process to keep your Leigh project on track from start to finish.
Initial Consultation
We discuss your ideas, goals and budget for your Leigh property.
Site Visit
We visit your property to assess the work and confirm exactly what's needed.
Detailed Quotation
A clear, transparent breakdown of costs, materials, labour and timelines.
Building Control & Permissions
We liaise with Leigh Council building control and, where needed, architects and structural engineers.
Construction
Our experienced team carries out the work to a high standard, keeping you updated throughout.
Final Inspection & Handover
We walk through the finished project with you to make sure everything meets your expectations.
What Our Leigh Clients Say
Feedback from Leigh homeowners and businesses who chose KJL Builders.
★★★★★
KJL Builders extended our terrace in Leigh and matched the original brickwork perfectly. Professional from the first quote to the final walkthrough.
★★★★★
We had a knock through done on our semi in Leigh — tidy, reliable and the steel beam installation was handled without any fuss.
★★★★★
Converted our garage in Leigh into a home office. Great communication throughout and finished on schedule.
Leigh Builders FAQs
Useful information before you start planning a building project in Leigh.
Ask us a questionWhat areas of Leigh do you cover?
We cover the whole of the WN7 postcode district — including Bedford, Pennington, Westleigh and Higher Folds — plus the surrounding area.
Do you work on properties in conservation areas or listed buildings?
Yes. Leigh and the surrounding area include conservation areas and listed properties, particularly in the older parts of town. We're experienced working within these constraints and can advise on what's required before work starts.
Can you help with planning permission and building control?
Yes, we liaise directly with Leigh Council's building control team and, where required, architects and structural engineers — and can source these professionals for you if you don't already have your own.
Do you work on properties in the centre of Leigh as well as the surrounding areas?
Yes, alongside period terraces and semis across the surrounding areas, we also carry out work on properties in and around the centre of Leigh, subject to any building management rules that apply.
What services do you offer in Leigh?
House extensions, knock throughs and steel beam installation, garage conversions, porches, bricklaying, garden walls, kitchen renovations, loft conversions and commercial building work — all available across every area of Leigh.
How much does building work cost in Leigh?
Costs vary widely depending on the project and property type, from around £1,500 for smaller jobs to £30,000+ for larger extensions and commercial work. Contact us for a personalised quote based on your property.
When do I need to pay?
We don't take large payments up front. Payments are staged against completed, inspected work, and for structural elements we don't take payment until the building inspector has signed them off.
Looking for a builder in Leigh?
Tell KJL Builders what you have planned and arrange a free quote anywhere in Leigh.