House Extensions
Single and double-storey extensions designed and built to blend seamlessly with your existing home, from foundations to final finish.
See our building work
Plus — now offering drone roof & site surveys
Craftsmanship other builders don't match
Exceptional extensions, garage conversions & building work.
JPN Building Contractors is a family-run firm known for meticulous, high-end finishes — from extensions and garage conversions to full renovations and building projects, backed by our own in-house drone surveys. Based in Horwich, serving Greater Manchester.
94%Customer recommend rate
FamilyRun & fully local
Bolton& Greater Manchester
Family-run building firm
Reliable & fully insured
Competitive, honest rates
In-house drone survey team
What we do
Full-service building contractors
Extensions, garage conversions and general building work are the heart of what we do — plus the full range of trades to finish a project properly, all from one team.
Garage Conversions
Turn an unused garage into a playroom, home office or extra bedroom — fully insulated, replastered and finished to match the rest of the house.
See our building workRenovations & Refurbishments
Full or partial home renovations, internal reconfiguration, loft conversions and refurbishment work carried out to a high standard.
Discuss a renovationRoofing
New roofs, re-roofing and roof repairs — inspected and quoted accurately using our own drone surveys before work ever begins.
See how we survey roofsLandscaping, Driveways & Groundworks
Composite decking, artificial lawns, patios, block-paved driveways and foundations — complete outdoor and groundwork transformations.
View recent gardensDrone Surveys — New
High-resolution aerial roof and site surveys — safer, faster and more detailed than a ladder, ideal before quoting any roofing job.
Book a drone survey
Our core trade
Extensions, garage conversions & building work — this is what we do.
Before drones or decking, JPN Building Contractors is a building firm. Extensions, garage conversions and general building projects make up the bulk of our work — planned properly, finished to a high-end standard, and project-managed from first brick to final coat of paint.
Single & double-storey extensions
From a rear kitchen extension to a full second storey, designed to match your home's existing character.
Garage conversions
Turn dead space into a usable room — insulated, rewired, replastered and finished throughout.
One team, start to finish
Groundworks, brickwork, roofing, plastering and finishing — all managed in-house so nothing falls between trades.
Surveyed and planned properly
We use our own drone surveys to plan roofline tie-ins and site access before work starts — fewer surprises, better quotes.
Real extensions & building projects completed around Bolton and Horwich
Our newest service
Drone roof & site surveys, done properly.
We've recently invested in professional drone equipment so we can inspect roofs, chimneys and hard-to-reach areas without putting anyone on a ladder. It means faster, safer, and far more accurate surveys — and you get to see exactly what we see.
No scaffolding or ladders needed
A full external survey without the cost, time or risk of working at height just to take a look.
High-resolution photo & video reports
Every survey is delivered with clear imagery so you can see the exact condition of your roof, tiles and guttering.
Faster, more accurate quotes
Seeing the full roof from above means fewer surprises once work starts, and a quote you can trust.
Great for insurance & pre-purchase checks
Useful evidence for storm damage claims, subsidence concerns, or checking a property before you buy.
Straight-down roof capture
Every tile, valley and vent, clearly visible
Recent projects
A look at our work
A selection of recent jobs — real photos from real projects around Bolton and Horwich, including our latest drone survey passes.
How we work
From first call to finished job
A straightforward process, so you always know what's happening and when.
01
Get in touch
Call, message or fill in the form — tell us about the job and we'll arrange a visit or drone survey.
02
Survey & quote
We assess the work on site (or from above, for roofs) and give you a clear, honest, no-obligation quote.
03
We get to work
Our team carries out the job to schedule, keeping you updated and the site tidy throughout.
04
Sign-off & aftercare
A final walkthrough together, and we're only ever a phone call away if you need us after that.
Reputation
94% of customers recommend us
Rated by real customers across Bolton and the surrounding areas.
"Brilliant job on our garden decking — turned up when they said they would and the finish is fantastic. Would definitely use JPN again."
"Had a drone survey done on our roof before getting it re-tiled — brilliant idea, showed us exactly what needed doing. Really impressed."
"Family-run and it shows — friendly, honest, and the extension they built for us is better than we imagined. Highly recommend."
Get in touch
Request your free quote
Tell us a little about your project — including whether you'd like a drone survey — and we'll get back to you.
Contact JPN Builders
Family-run and based locally — call, email or message us directly.
Call or WhatsApp07771 688591
Based atEmmett Street, Horwich, Bolton, BL6 7PN
HoursMon – Sat, by appointment