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Aldern
0113 496 0182 Start a project
A house extension in red brick and black timber cladding

Designed and built as one job

Aldern designs and builds extensions, loft rooms and whole-house renovations in West Yorkshire: one team from the first sketch to the last key.

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One team, one drawing

Most building work goes wrong in the gap between the architect and the builder. One draws what the other cannot price, and the client pays for the difference.

At Aldern the people who draw your extension sit beside the people who build it. Every drawing is costed as it is made, so the price you sign is the price you pay.

We take on twelve projects a year, all within an hour of Leeds, and one site manager stays with yours from the first trench to the last coat of paint.

Two members of the studio reading a drawing at a workbench

What we do

Extensions

Rear, side and wraparound extensions in brick, timber and glass.

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Loft rooms

Dormer and hip-to-gable conversions with a proper stair and real headroom.

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Kitchens

Layouts drawn round how you cook, fitted by our own joiners.

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140+Projects completed
12Years building in Yorkshire
96%Finished on the agreed date
10Year structural guarantee

How a project runs

01

Survey

We measure every room and draw the house as it stands today.

02

Design

Two or three options, each with its price, then the permissions.

03

Build

Our own crews, one site manager and a note to you every Friday.

04

Handover

A snag-free house, a folder of certificates and ten years of cover.

Recent work

An oak kitchen with pale stone worktopsShow the picture large
A living room with oak beams and tall windowsShow the picture large
A bathroom with warm tiles and a timber vanityShow the picture large
A kitchen with terracotta walls and cream cabinetsShow the picture large

What clients say

HA
The price on the contract was the price on the final invoice, to the pound. After two builders who could not say that, it felt like a miracle.
Helen and Marcus T.Rear extension, Roundhay
PS
They drew three versions of our loft and told us plainly which one they would build for themselves. We built that one.
Priya S.Loft room, Headingley
TA
A note every Friday with what was done and what came next. We were never once left guessing.
Tom and Ana R.Renovation, Ilkley

Tell us about your house

A first visit is free and takes an hour. Within a week you have a sketch, a budget range and a date we could start.

Book a first visitCall the studio