9 Coles Close, Little Harrowden, Wellingborough, England, NN9 5DD
Building, extensions and refurbishment
Quote on request.
Northampton · Building & conversions
Builders in Northampton
Phone numbers for builders covering Northampton — extensions, loft conversions and refurbishment. Open a profile and call the business yourself. This site does not send your job.
Extensions and loft work need more than a day rate. The renovation budget tool can sit beside a local quote. Wellingborough and Kettering are not this page. Milton Keynes is a different list even when a firm advertises both. Profiles show a name, the area they cover and a phone number. Public qualifications such as Gas Safe or NICEIC appear only when they are on the profile. Read the cost notes for a sourced national range; a figure on a card is not a quote.
Derngate Mews, Derngate, Northampton, NN1 1UE
Building, extensions and refurbishment
Quote on request.
65 Studland Road, Kingsthorpe, Northampton NN2 6NE
Building, extensions and refurbishment
Quote on request.
21 Market Place, Long Buckby, Northampton, NN6 7RR
Building, extensions and refurbishment
Quote on request.
12 Flinters Close, Wootton Fields, Northampton NN4 6BH
Building, extensions and refurbishment
Quote on request.
Victory House, 400 Pavilion Drive, Northampton Business Park, Northampton NN4 7PA
Building, extensions and refurbishment
Quote on request.
No businesses match those extra filters. Clear 24-hour or qualification to widen the list.
Typical building & conversions costs
Checkatrade’s house-extension guide, per-square-metre table last updated March 2025, is a national sense-check for shell versus finished work. It is not a local tariff. A loft in Abington is a house structure. Adding a mezzanine in a conversion is the landlord's structure. Ask them to name the client who can sign.
A local rule to check in Northampton
Many extensions, loft conversions and structural openings need building control, and some need planning. A listing is not an approval and not a party-wall agreement.
Questions before you phone
How do I find builders in Northampton on this list?
Abington and Far Cotton are the older terraces and semis. Newer estates toward Kingsthorpe are trussed roofs and drives. Shoe-factory conversions in the centre are flats with a landlord's riser. Names, service areas and phone numbers sit on the cards. Open a profile and call the firm yourself. Wellingborough and Kettering are not this page. Milton Keynes is a different list even when a firm advertises both.
Does this page send my job to a Northampton building & conversions firm?
No. You place the call. This site does not email or text anyone on your behalf.
What should the written price say for building & conversions in Northampton?
Name the client who is allowed to alter the structure, especially in a converted factory where the resident is not the owner.
What is easy to miss before booking in Northampton?
A factory-conversion flat does not own the roof or the riser. A terrace in Far Cotton does own its boiler flue. The quote has to know which building it is in.
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