A well-built extension changes how a house feels every day and adds real value the day you sell. We take extensions ground-up: foundations, structural steels, brickwork, roof, plaster, second fix, all managed from one contract, with a fixed written price and a 10-year structural warranty in the paperwork.
A residential extension is a permanent addition to your home, usually a single or double-storey side, rear or wrap-around build tied structurally into the existing property. Every stage sits under Building Regulations and, in many cases, planning permission or permitted development.
Homeowners in and around King's Lynn who need more space and would rather build than move. Typical projects are kitchen-diner rear extensions, side infills, double-storey extensions above a garage, and wrap-around builds that redraw the whole ground floor.
Once you have an idea of scope, it's worth booking a survey even before drawings. we can tell you what's realistically buildable, what triggers planning, and what a sensible budget looks like before you commit to fees.
Extensions touch structure, damp-proofing, insulation, fire separation, drainage and thermal performance. Get any of those wrong and you don't just get a poor room, you get a house that won't survey cleanly when you come to sell. A single accountable contractor is the difference between a build that lasts and one that costs twice.
The horror stories are almost always the same shape: cheap price, missing detail on the quote, half-finished job, main contractor gone, homeowner chasing subcontractors who were never paid. It's avoidable, but only if you get the contract, insurance and warranty side right before day one.
Missed cavity trays, weak insulation continuity, or bad detailing at the join between old and new walls means the new room is colder than the rest of the house from day one.
Under-specified structural steel, poor padstones, or steels installed without engineer sign-off cause visible cracking and eventually structural movement.
The join between existing and new roof is where most leaks happen. Bad flashing, missed soakers or lazy lead work will drip within a couple of winters.
Regulations sign-off is what your solicitor asks for when you sell. No completion certificate means renegotiated price or a collapsed sale.
the owner visits, measures up, understands what you want and flags any planning, party wall or structural issues before you spend on drawings.
Itemised quote within 3 working days, foundations, structure, brickwork, roof, first fix, plaster, second fix, decoration. You see every line.
Contract signed, stage-payment schedule agreed in writing, materials scheduled, building control notified, party wall notices served where required.
Groundworks, structure, roof, then weathertight before first fix. owner on site regularly, one trade lead at any one time, tidy compound.
Building control final inspection, snagging walked with you, completion certificate handed over, 10-year structural warranty issued.
the owner prices, manages and finishes the job personally. When something needs deciding, you talk to the man who signed the quote.
Every extension is covered by a 10-year structural warranty, the paperwork your solicitor will ask for when you sell.
The number on your quote is the number on your invoice. Variations are only ever agreed in writing before work happens.
You pay as visible progress is made on site, not a fat deposit before a spade goes in the ground.
Cavity trays, insulation continuity, cold-bridge breaks at slab and lintel, done properly so the new room isn't the coldest in the house.
One clean compound, waste managed daily, neighbours respected. You still have to live there while we're building.
We build the shapes that actually work on Norfolk housing stock. Some need planning, some are permitted development, we'll tell you which before you commission architect's drawings.
Most extensions need structural steels, either as a beam over a knocked-through wall or as a frame carrying an upper storey. We work to your engineer's calcs, install to spec with correct padstones and bearings, and coordinate the building control inspection.
We build in traditional brick-and-block cavity construction with insulation to current Part L standard. Roofs are cut and pitched or trussed depending on span. Flat roof sections are warm-deck fibreglass or EPDM, detailed properly at the abutment.
Once weathertight, we run first-fix electrics and plumbing to your spec, insulate, plaster and screed. Second fix takes it to finished: sockets, radiators, doors, skirting, tiling, coordinated so trades don't tread over each other's work.
Straight answers on cost, timelines, guarantees and how the job runs. If yours isn't here, call Jason on 07880 333321.
Free site survey within 7 days. Written, itemised quote within 3 working days. Owner-managed by Jason personally, no call centre, no middlemen.
