House Extensions
Single storey, double storey, rear and wrap-around extensions across Wigan.
Learn more →KJL Builders are local, fully insured builders covering Wigan 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.
Wigan has a wide mix of property styles, from the Victorian terraces built in its coal-mining and cotton-mill days to inter-war semis, post-war estates and newer developments across the borough — and each comes with its own considerations when extending, converting or renovating. Having worked across Wigan 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 Wigan Council without unnecessary delays.

Complete protection for your property and our team throughout the work.
Experience with Wigan's Victorian terraces, semis, post-war estates and newer developments.
From Wigan town centre out to Standish, Orrell, Hindley, Ashton-in-Makerfield and beyond.
Clear, fair quotes with no hidden costs before any work begins.
We liaise directly with Wigan Council building control, architects and structural engineers, and can source these professionals for you.
We don't take large payments up front — payments are staged against completed, inspected work.
Every building service we offer, available right across Wigan.
House Extensions
Single storey, double storey, rear and wrap-around extensions across Wigan.
Learn more →Knock Through
Structural wall removal and steel beam installation for open-plan Wigan homes.
Learn more →Garage Conversions
Turn your Wigan garage into an office, bedroom, gym or extra living space.
Learn more →Porches
Open, enclosed and gable-fronted porches that suit Wigan's terraces and semis.
Learn more →Bricklaying Contractors
New brickwork, blockwork, repairs and repointing matched to Wigan's 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 Wigan businesses.
Learn more →Kitchen Fitters
Full kitchen renovations and fitted installations for homes across Wigan.
Learn more →Loft Conversions
Dormer, Velux and hip-to-gable loft conversions, loft boarding and loft bedrooms, offices and ensuites for homes across Wigan.
Learn more →We cover every Wigan postcode district — from the town centre out to the surrounding suburbs and towns. Here's a full breakdown of the areas within each postcode.
| Postcode | Areas Covered |
|---|---|
| WN1 | Wigan Town Centre, Swinley, Haigh, Ince |
| WN2 | Hindley, Hindley Green, Aspull, Abram, Platt Bridge, Bamfurlong, Bickershaw, Ince-in-Makerfield |
| WN3 | Winstanley, Worsley Mesnes, Goose Green, Hawkley Hall, Ince |
| WN4 | Ashton-in-Makerfield, Garswood |
| WN5 | Orrell, Pemberton, Billinge, Winstanley, Worsley Hall, Marsh Green, Newtown, Higher End |
| WN6 | Standish, Shevington, Appley Bridge, Beech Hill, Springfield, Wrightington |
Don't see your exact street listed? We cover the whole of Wigan — get in touch and we'll confirm we cover your postcode.
Costs vary by property type and the scale of work — a Victorian terrace in Pemberton or a semi in Standish will differ from a new-build near the town centre. Here's a rough guide to help with budgeting; we recommend a site visit for an accurate quote.
Porches, garden walls, bricklaying repairs and small garage conversions.
Knock throughs, full garage conversions and single storey extensions.
Double storey extensions, wrap-around extensions and commercial fit-outs.
For an accurate estimate, we recommend requesting a personalised quote based on your Wigan property and project requirements. Get in touch →
As well as every Wigan postcode, we cover the wider Wigan borough and surrounding towns, including:
A clear, structured process to keep your Wigan project on track from start to finish.
We discuss your ideas, goals and budget for your Wigan property.
We visit your property to assess the work and confirm exactly what's needed.
A clear, transparent breakdown of costs, materials, labour and timelines.
We liaise with Wigan Council building control and, where needed, architects and structural engineers.
Our experienced team carries out the work to a high standard, keeping you updated throughout.
We walk through the finished project with you to make sure everything meets your expectations.
Feedback from Wigan homeowners and businesses who chose KJL Builders.
KJL Builders extended our terrace in Pemberton 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 Standish — tidy, reliable and the steel beam installation was handled without any fuss.
Converted our garage in Hindley into a home office. Great communication throughout and finished on schedule.
Useful information before you start planning a building project in Wigan.
Ask us a questionWe cover every Wigan postcode from WN1 to WN6 — including the town centre, Swinley, Haigh, Ince, Hindley, Aspull, Abram, Platt Bridge, Winstanley, Worsley Mesnes, Ashton-in-Makerfield, Orrell, Pemberton, Billinge, Standish and Shevington — plus the wider Wigan borough.
Yes. Wigan has a number of conservation areas and listed properties, particularly around the town centre and older suburbs. We're experienced working within these constraints and can advise on what's required before work starts.
Yes, we liaise directly with Wigan 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.
Yes, alongside period terraces, stone-built homes and semis across Wigan's suburbs, we also carry out work on properties in and around the town centre, subject to any building management rules that apply.
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 Wigan.
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.
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.
Tell KJL Builders what you have planned and arrange a free quote anywhere in Wigan.
Fill in the form below with a few details about your Wigan project and we'll get back to you with a free, no-obligation quote.
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