AJB Group (Carpentry) Ltd
Scaffolded brick frontage with an arched opening above a high street

Areas · South Kesteven, Lincolnshire

Carpenters in Grantham

Carpenters in Grantham, working across South Kesteven. Free site visit and a written estimate for domestic work, or send drawings and we will price the full carpentry package.

Grantham is where AJB Group's biggest single carpentry package sits. 17-19 High Street is a disused town centre building being turned into 9 apartments and a pharmacy, and the whole carpentry scope on it is ours, from the sash windows on the front elevation to the last kitchen upstairs.

Town centre conversions are a particular kind of job. The building fights you: floors are out of level, the elevation is listed in everybody's memory if not on any register, the street has to stay open, and every internal wall you build has a fire strategy attached to it. They are won by contractors who can take the whole scope rather than by trades who take a slice of it and leave the joins to somebody else.

Proof

Work we have done in Grantham.

17-19 High Street, for Probus Construction. Nine brand new apartments in the town centre, a large win in the South Kesteven district, taken as a full carpentry package. The scope, as awarded:

  • New external sash windows and doors
  • New shop front windows and hoarding
  • 72 internal fire doors and frames
  • Two double winder staircases
  • New internal joists and flooring
  • Stud partitions to all external walls
  • Stud layout for 9 apartments
  • Nine kitchens
  • One pharmacy shop fit out

Phase one put the team on site for six weeks. Since then, 8 of the 9 flats have been formed, with internal and external thermal walls built around steels and ceiling works threaded in between, which is what finally gave the old building a sense of structure.

72 fire doors, delivered and scheduled. Door sets arriving on a nine o'clock delivery ahead of installation across 9 flats, then worked through against a door schedule rather than hung as and when. On a conversion the fire doors are compliance items, so the frames, seals, gaps and ironmongery have to match the strategy and be recorded.

A timber window frontage craned into the town centre. An early morning lift on the High Street: a full timber window frontage for one of the flats, with a half moon window in the middle of it. The crane, the carpenters and the timber windows were all supplied by AJB, so the client had one point of contact for a lift that would normally involve three.

Thermal walls, steels and ceilings. Internal and external thermal wall build ups formed around new steelwork across eight of the nine flats, with ceiling works run in between, ahead of second fix and the nine kitchens.

Carpentry package under way at 17-19 High Street, Grantham
New timber joists installed alongside original beams inside a building conversion
Oak staircase finished above a herringbone parquet floor
Close up of rough sawn timber cladding boards screw fixed over a black backing

The Grantham package

Client
Probus Construction Ltd
Building
17-19 High Street, disused commercial to residential
Units
9 apartments plus 1 pharmacy
Fire doors
72 internal door sets and frames
Staircases
2 double winder flights
Glazing
External sash windows, shop front, half moon frontage craned in
Phase 1
6 weeks on site
District
South Kesteven

What we do here

The services Grantham asks for most.

Internal fire door set and frame installed in an apartment

Fire doors

FD30 and FD60 supply, survey and installation. Seventy two door sets across nine flats on one Grantham building.

Close up of a chrome lever handle, latch and keep on the edge of an oak internal door

Doors and windows

Timber sash windows, external doors, shop front frames and full frontages, craned in where the street allows nothing else.

Winder staircase flight built into a converted building

Staircases

Straight flights, winders and double winders, set out against finished floor levels in buildings that are rarely square.

Elevated view of a new timber roof structure on a long building surrounded by scaffolding

Shopfitting and fit out

Retail and pharmacy fit outs, hoarding, counters and shop fronts, worked around a live high street.

Fitted kitchen installed in a converted apartment

Kitchens

Supply and fit at volume. Nine kitchens in one Grantham building, sequenced behind second fix.

Timber clad single storey building with a standing seam metal roof nearing completion

Carpentry packages

The whole scope, priced from drawings and written out line by line so nothing falls between trades later.

Getting to you

Across the county on the A52.

Grantham is about 26 miles west of Spalding: out on the A151 through Pinchbeck, Bourne and Corby Glen, then across on the A52. It is under an hour, and the run passes two of the towns AJB works in most, so a Grantham site visit can usually be tied into an existing day rather than added to one.

The same route covers Corby Glen, Colsterworth, Great Gonerby, Barrowby, Harlaxton, Denton, Ancaster, Long Bennington and the villages either side of the A1. AJB is also on site at Bourne Town Hall for the same main contractor, twenty minutes back down the road, which is worth knowing if you are weighing up whether a Spalding based firm will really turn up in South Kesteven.

Case studies

Grantham and South Kesteven.

Nine apartment conversion at 17-19 High Street, Grantham

17-19 High Street, Grantham

The full carpentry package: 72 fire doors, two double winder staircases, sash windows, a shop front, nine kitchens and a pharmacy fit out.

Grantham · Probus Construction
Roof works under way at Bourne Town Hall

Bourne Town Hall

Twelve roof adaptations across a 16 month renovation, including the steel and timber build up carrying a new five metre clock.

Bourne · Probus Construction
Events venue construction at Alford Manor House by AJB Group

Alford Manor House

A 20 metre hand cut roof on a steel framed structure, a new slate roof, 111 square metres of rough sawn cladding and the interior fit out and bar.

Alford · Probus Construction

Common questions

Before you call

What have you built in Grantham?

The full carpentry package at 17-19 High Street, a disused town centre building converted into 9 apartments and a pharmacy for Probus Construction: new external sash windows and doors, new shop front windows and hoarding, 72 internal fire doors and frames, two double winder staircases, new internal joists and flooring, stud partitions to all external walls, the stud layout for 9 apartments, 9 kitchens and the pharmacy shop fit out.

Can you fit fire doors on a commercial to residential conversion?

Yes. We installed 72 internal fire doors and frames across 9 flats at 17-19 High Street, delivered in scheduled drops and fitted alongside second fix and kitchens. On a conversion the fire doors are compliance items, so the doors, frames, intumescent seals, gaps and ironmongery all have to match what the fire strategy specifies, and be recorded.

Do you cover the South Kesteven villages as well as Grantham?

Yes. The Grantham run comes across from Spalding through Bourne, so Corby Glen, Colsterworth, Great Gonerby, Barrowby, Harlaxton, Denton, Ancaster and Long Bennington are all on the way in or a short run out from the town.

Can you crane in a window frontage?

Yes. In Grantham town centre we craned in a full timber window frontage including a half moon window, using our own crane. Crane, carpenters and timber windows all came from us, which gave the client one point of contact for a lift that would normally involve three.

Do you build staircases in Grantham?

Yes. Two double winder staircases were built into the 17-19 High Street conversion. Winder flights are the usual answer where a converted building has no room for a straight run, and they have to be set out against the finished floor levels rather than the existing ones.

How long does it take you to reach Grantham?

Under an hour. Grantham is around 26 miles west of our Spalding base, out on the A151 through Bourne then across on the A52, and we have been on site there in phases since 2025.

Grantham conversion or new build?

We will price the whole carpentry scope, fire doors and kitchens included, from your drawings.

Call 07716 954091 Get a quote