Building Repairs & Maintenance in Christchurch
The jobs that are too small for a big building company and too real for a handyman. Storm damage, insurance work, decks, fences, roofs and rot. We turn up when we say, price it straight, and finish it.
Licensed Building Practitioner · Trade qualified · Site Safe member · 12 month workmanship guarantee · Building in Canterbury since 2012
What we fix
If it's built of timber and it's gone wrong, it's probably us.
Outside
Decks — new, repaired, re-boarded
Fences and gates
Re-roofs, roof repairs and roof leaks
Spouting and downpipes
Garages and carports
Weatherboard, cladding and rot repairs
Inside
Gib fixing and plaster repairs
Window and door repairs and replacement
Floor levelling and subfloor repairs
Kitchen and bathroom repairs
Rot and borer repairs
Foundations
Foundation crack repair — epoxy injection to cracked ring foundations
Re-levelling to MBIE tolerances, jack and pack
Failed EQC and EQR repairs put right
Pile replacement and subfloor work
We can arrange and manage the design, the consents, the construction and the certification — or slot in alongside a designer you've already got.
Insurance, storm and EQC repairs
A lot of people think their insurer picks the builder. Usually you do.
Most insurers will let you choose your own builder on a repair claim. Some run their own panel — worth asking yours first. If you get the choice, get a proper quote from us and send it through with your claim.
We price it the way an assessor reads it
Scope, quantities and rates, itemised line by line, so the assessor can check it against their own numbers instead of arguing with a one-line total. It's the same way we price government housing contracts, so it stands up to being read properly.
We'll talk to your assessor about the building work and answer the technical questions. We won't argue your claim for you — that part is between you and your insurer.
What we get called out for
Storm and wind damage — roofs, spouting, fences, trees through things
Water damage and the rot that turns up behind it
Impact damage — vehicles, trees, fallen branches
Fire and flood reinstatement
Failed EQC and EQR repairs, which is still a live one in Christchurch
Rural and lifestyle block
Farm sheds, implement sheds, woolsheds and lifestyle block outbuildings. Same work, longer drive. We cover Selwyn and Waimakariri as standard.
Failed earthquake repairs
If an EQC or EQR repair has cracked open again, the repair itself is often the problem, not just the damage. A crack that is still moving will break a rigid epoxy repair exactly the way it broke the first one. We strip back, find out whether the crack has actually settled, and price the fix that will hold rather than the one that looks quickest.
Our own builders, not whoever's free
A lot of companies sub the whole job out. We don't. We're the main contractor and we carry our own team of builders who do the work themselves. Specialist trades — electrical, plumbing, painting — we coordinate on top.
What we don't do
We don't take on standalone electrical, plumbing, painting, tiling or asbestos removal. We coordinate those specialists where a job needs them — that's a normal part of being the main contractor — but we're not the people to ring if that's all you need.
We're not a handyman service either. We're builders, and we take building work.
What people say
We were very impressed with Jason's knowledge about the job and how he encouraged the painters to take the extra prep time to ensure a quality finish. In a world where everything is rushed, it is rare to find a company that pushes for that extra quality instead of speed. The workmen were polite and approachable, and we got the impression that they all knew what they were doing. They took good care of our home. I would have no hesitation recommending Cornerstone Building to anyone.
— James and Teresa Proudlove
During July–August your company completed repairs to my home… The work was done with consideration. My sincere thanks.
— Patricia Hall, Shirley
How it works
1. Tell us what you're after
Call, text, or send a photo through the form. A photo and a rough idea is usually enough for us to know whether it's our sort of job. If it's an insurance claim, tell us that too — it changes how we write the quote.
2. We come and look
We'll come out, have a proper look, and give you a written price. Free, and no obligation to go ahead.
3. We get it done
Our own builders, on the tools. You get a start date, and we hold to it. Every quoted job comes with a 12 month workmanship guarantee.
Got something that needs fixing?
Send us a photo and a rough idea. If it's an insurance claim, say so and we'll write the quote to suit.
Why people call us for this
We do this work regularly, not occasionally.
Our own builders do the work — we don't sub the job out to whoever's free.
Licensed Building Practitioner. Trade qualified. Site Safe member.
Building in Canterbury since 2012, through the rebuild and out the other side.
Every quoted job carries our 12 month workmanship guarantee.
Where we work
Christchurch, Kaiapoi, Rangiora, Rolleston, Lincoln, Prebbleton and across Canterbury, including rural Selwyn and Waimakariri.
We're mostly mobile — call or text and we'll arrange a time that suits.