The 2-5-10 New Home Warranty in BC, Explained
What BC’s mandatory new home warranty actually covers: 2 years labour and materials, 5 years building envelope, 10 years structure, and when the clock starts.
Every new home built in British Columbia must come with third-party warranty insurance. It is not optional, it is not a builder’s goodwill gesture, and it is not something you negotiate for. Under the Homeowner Protection Act, a residential builder must be licensed and the home must be covered by warranty insurance from an approved provider before it can be sold. Buyers hear it called “2-5-10” and nod along. Very few know what the three numbers actually protect.
Here is what each number covers, what it does not, when the clock starts, and why the start date matters enormously if you are choosing between a presale and a finished home.
What the three numbers mean
The name is shorthand for three separate coverage periods that run at the same time, from the same start date, but protect different things.
2 years — labour and materials
The shortest and broadest layer. It covers defects in the workmanship and materials of the home, the things that go wrong first. In practice it is tiered:
- 12 months on defects in labour and materials for a detached home, and for the non-common property of your strata unit, essentially inside your own four walls.
- 15 months on defects in labour and materials for the common property of a strata building: lobbies, corridors, amenity rooms, parkade.
- 24 months on defects in labour and materials relating to the electrical, plumbing, heating, ventilation and air conditioning systems, in every building type.
So “2 years” is really “up to 2 years, depending on what broke.” A faulty outlet or a failing HVAC unit gets the full two years. A poorly hung cabinet door gets twelve months. This is why your deficiency list at orientation matters so much: the shortest coverage window is the one covering the largest number of small, visible items.
5 years — the building envelope
The envelope is the building’s skin: the exterior walls, roof, windows, doors, membranes and everything that separates inside from outside. This layer covers defects in that envelope, and specifically includes unintended water penetration.
This is the coverage that exists because of BC’s leaky condo crisis. Water ingress is the most expensive and most common serious failure in Lower Mainland multi-family construction, and it typically does not reveal itself in the first twelve months. It shows up in year three, after a few winters. Five years is the legislated recognition of that.
10 years — structure
The longest and narrowest layer. It covers structural defects: defects in materials or labour that cause the failure of a load-bearing part of the home, or that compromise its load-bearing function to the point that the home’s safety or habitability is threatened.
This is not cosmetic and it is not “something is a bit off.” It is the foundation, the frame, the load path. Claims are rare. When they happen they are catastrophic, which is why the coverage runs a decade.
The coverage limits
Warranty insurance is capped. The limits are worth knowing before you assume you are covered dollar for dollar:
- Strata unit: the lesser of the first owner’s purchase price or $100,000.
- Detached (fee simple) home: the lesser of the first owner’s purchase price or $200,000.
- Strata common property: the lesser of $100,000 multiplied by the number of dwelling units, or $2.5 million per building.
For most Greater Vancouver condo buyers the practical ceiling on your own unit is $100,000, with a separate pool covering the building’s shared elements. On a large envelope failure the common property limit is the number that matters, and it is shared across every owner in the building.
What the warranty does not cover
The gaps cause more disappointment than the coverage causes relief. Warranty insurance generally does not cover:
- Normal wear and tear, and normal shrinkage of materials as the building dries and settles, such as minor drywall cracking and nail pops.
- Damage from your own actions or neglect, including failure to perform routine maintenance.
- Failure to mitigate. If you notice a leak and let it run for a year, the additional damage is on you.
- Landscaping, appliances and items covered by a manufacturer’s own warranty, though the manufacturer warranty still applies.
- Anything you were told about and accepted before purchase.
- Missed deadlines. Coverage is a claim window, not a guarantee. If you report a defect after its period expires it is not covered, even if the defect existed earlier.
The single most common mistake is assuming someone else will notice. The warranty is claims-based. Nobody inspects your home at month eleven on your behalf. Diarize your dates, walk your unit before each deadline, and submit in writing.
When the clock starts, and why it decides everything
This is the part that matters most for anyone weighing a presale against a finished home.
Warranty coverage generally begins on the date the first owner takes possession of the home, or for common property when the building is complete and the strata is created. It does not begin when you sign your contract, and it does not begin when construction starts.
The consequence: buy a presale and you are the first owner, so you take possession on completion day and receive the full 2-5-10 clock, starting fresh from day one. Buy a completed new home that someone else already took possession of, even if nobody ever lived in it, and you inherit whatever time is left. A unit that completed in 2023 has already burned its two-year labour and materials coverage and is three years into its envelope and structural clocks.
The warranty does transfer to subsequent owners for the remainder of each period, but it does not restart. “Brand new” and “full warranty” are not the same claim, and the difference can be several years of protection.
How to actually use it
- Find out who your warranty provider is. It is named in your documents, and it is an insurance company, not your builder.
- Write down your possession date and calculate the 12-month, 15-month, 24-month, 5-year and 10-year deadlines. Put them in your calendar now.
- Do a deliberate walkthrough before each deadline. Month ten and month twenty-two are the two that catch the most.
- Report in writing, to both the builder and the warranty provider. A verbal report to a site supervisor is not a claim. Keep dated copies and photographs.
- For strata common property, work through your strata council. Envelope and structural claims are almost always building-wide, and the strata corporation is the claimant.
What this means for you as a presale buyer
Your orientation walkthrough is warranty work. The deficiency list you build before completion is your first and best chance to document defects while the builder is still on site and motivated. Confirm the builder is licensed and the warranty is in place before you commit, which is a legal requirement and is verifiable. And recognise that being the first owner has real value: a full, unstarted 2-5-10 clock is one of the genuine advantages of buying presale over buying a finished unit that has already changed hands, and it is rarely priced into the comparison.
Frequently asked questions
Is the 2-5-10 warranty mandatory in BC?
Yes. Under the Homeowner Protection Act, new homes must be built by a licensed residential builder and covered by third-party home warranty insurance, with limited exemptions such as certain owner-built homes.
Does the warranty transfer if I sell?
Yes. Coverage attaches to the home and transfers to subsequent owners for whatever remains of each period. It does not reset.
Who pays for the warranty?
The builder arranges and pays for the policy as a cost of the project. You do not buy it separately.
What is the building envelope?
The parts of the building that separate the interior from the exterior: exterior walls, roof, windows, doors and the membranes and assemblies around them. Water penetration through the envelope is covered for five years.
Does the warranty cover my appliances?
Generally no. Appliances are covered by their own manufacturer warranties. The two-year labour and materials coverage applies to the installation and to the building’s electrical, plumbing and HVAC systems.
This is part of our Complete Guide to Buying a Presale in BC, and it pairs with our guide to presale vs. completed new construction, where the warranty clock is often the deciding factor. If you want help checking the warranty position on a specific building, I work with Greater Vancouver new construction buyers in plain language, at no cost to you. Book a consultation.
