Canterbury renovations, extensions and additional dwellings
Make more of your home.
Alterhouse helps Canterbury homeowners create more space, better flow and smarter ways to live, without walking away from the place they already love.
Your home should make life easier.
A home that once worked perfectly can begin to feel cramped, dated or out of step with everyday life.
Maybe you need another bedroom. A kitchen where everyone can gather. Space for ageing parents. A proper place to work. Or a layout that makes mornings feel less like a military operation.
You do not always need a new home. Sometimes, you need a better version of the one you already have.
What could your home make possible?
We start with the life you want to create, not the square metres you want to add. Then we help you find the smartest way to get there.
Additional Dwellings
More space. More options.
Create an independent home for family, a source of income or a flexible space that gives your property more possibilities.
Renovations
Change what is no longer working.
Refresh tired spaces, rethink awkward layouts and create a home that feels better to live in every day.
Extensions
Make room for what comes next.
Create space for a growing family, a better-connected living area, a quiet home office or the bedroom everyone has been arguing over.
You do not need to have it all figured out.
Most homeowners do not begin with a perfect plan.
They begin with a problem.
There is not enough room. The layout feels wrong. The house is cold. Family circumstances have changed. They know something needs to happen, but they are not sure what the best answer is.
We listen to what is not working, understand what matters to you and help turn scattered thoughts, saved images and half-formed ideas into a practical way forward. No macho builder talk or making you feel like you should already know the answers. Instead, we offer clear advice and guide you through each decision.
A different kind of building experience.
We understand existing homes.
Older homes have history, quirks and the occasional surprise hiding behind a wall. We know how to work with what is already there, protect what is worth keeping and solve the parts that no longer work.
You will not be left to figure it out alone.
We help you understand the options, the costs, the trade-offs and what happens next. You will always know who to ask, and no question is too small.
We build around real life.
A floor plan only matters if it works for the people inside it. We think about routines, family dynamics, storage, privacy, light, noise and the things that make daily life easier.
We look for the smartest answer.
The biggest solution is not always the best one. Sometimes an extension is right. Sometimes a better layout can solve the problem without adding another square metre.
Homes changed for the better.
Our projects show what can happen when practical thinking, thoughtful design and experienced construction come together.
Experience where it matters.
Behind Alterhouse is a team with deep experience in construction, renovation, project management and quantity surveying. That means better questions at the beginning, clearer cost guidance and fewer surprises once work starts.
150+ renovation projects completed
80+ years of combined industry experience
Experienced quantity surveyors in-house
Based in Wigram and working across Canterbury
Trusted trades and long-standing supplier relationships
Testimonial
“Alterhouse are my go-to builders. From full home renovations and new builds to bathroom renos and extensions. Great communication, quality workmanship, and genuinely great people to deal with. I keep coming back, and I always will. Highly recommend.”
Lance Bradford | Managing Director, Unique Developers
Ready to make more of your home?
Tell us what’s not working and what you’d love to change. We’ll take it from there.