The Fraser Valley’s Go-To Tree Guys

How to Tell If a Tree Is Dead

Tree HealthPublished ·Updated ·8 min read·By Jacob Nylund, Owner, Certified Arborist

How to Tell If a Tree Is Dead: The Surrey Homeowner's Guide

Dead tree with bare dry branches against blue sky — identifying a dead tree in Surrey BC
Photo by arnaud audoin on Pexels

TL;DR

Trees don't announce when they're dying. The scratch test tells you in thirty seconds: green cambium under the bark means alive, brown means dead. A fully dead tree doesn't need to come down today — but it does need to come down before it decides on its own timing. If it's within fall distance of your house, give us a call before the next wind event does it for you.

Trees are notoriously bad at asking for help. Forty years in your yard without complaint — though I reckon they communicate just fine once they've made up their mind to fall on something.

Here is how to tell if a tree is dead: scratch a small patch of outer bark from any pencil-diameter twig with your thumbnail. Green and slightly moist underneath means that branch is alive. Brown and dry all the way through means it's gone. Test three or four spots across the tree. If all of them come back brown, you're dealing with a dead tree.

Quick answer: The scratch test is definitive. Green cambium = alive. Brown cambium = dead. Do it in five spots — upper canopy, mid-trunk, and near the base. A tree that fails in every spot is dead. A tree that shows mixed results is stressed or partially dying, which is a different situation but still worth looking at.

Nine out of ten calls we get about "dead" trees turn out to be dormant trees, stressed trees, or trees with a single dead section in an otherwise healthy canopy. A small but important fraction are genuinely dead — and have been for a season or two, quietly becoming a structural problem.

Close-up of tree bark texture — scratch test to tell if a tree is dead or alive, Surrey BC
Photo by Weichen Tian on Pexels

The scratch test — 30 seconds, one thumbnail

It's the first thing I do on every tree health assessment. It costs nothing and takes less time than unlocking your phone to look up "how to tell if a tree is dead."

Use your thumbnail — or a small pocketknife if you're doing a proper job of it — and scrape a patch of outer bark about the size of a fingernail from a pencil-diameter twig. Not the trunk, not a big limb. A small twig first.

The layer directly under the outer bark is the cambium. In a living branch it's green, sometimes pale yellow-green, and slightly moist. In a dead branch it's brown, dry, and lifeless all the way through. No ambiguity. You know instantly.

One dead twig is just one dead twig. Test five spots — two in the upper canopy if you can reach safely, two mid-canopy, one at the lowest accessible branch. A tree that's completely dead will fail in every location. A tree that's stressed or partially dying will show a mix.

Rule of thumb: if more than two-thirds of your test spots come back brown on a deciduous tree in the growing season, call a certified arborist for a proper assessment. Recovery at that point is possible, but requires professional eyes on the ground.

One thing that trips people up in winter: dormant trees look dead. No leaves, no growth, bare branches in every direction. But their buds are still alive. Check the branch tips — a dormant tree has tight, closed buds with a little moisture still in them. Crack one open: green inside means dormant. Dry and empty means that branch at least is done.

Close-up of a dead tree trunk with dry cracked bark — visible warning signs of a dead or dying tree
Photo by Alfo Medeiros on Pexels

Five warning signs your tree is dead

These are the things worth looking at before you even get to the scratch test.

1. Bark falling off on its own. Living trees have bark attached to living cambium. A tree that has been dead for a season or two will have bark that lifts away with almost no effort — sometimes in large plates or slabs, leaving dry grey-brown wood underneath. You shouldn't have to peel it. It should be coming off by itself.

2. No leaves in season, and no buds. Late spring in Surrey and still bare? That's worth investigating. A dormant tree will break bud when temperatures are right — usually March to April in the Fraser Valley. If your neighbours' trees of the same species leafed out weeks ago and yours hasn't moved, do the scratch test today.

3. Branches that snap clean without bending. Bend a pencil-thin branch. Living wood flexes before it breaks — there's elasticity in it. Dead wood snaps clean, often with a hollow or brittle sound, with no give at all. Dead branches lose their flexibility within one or two seasons of the tree dying.

4. Multiple large dead branches throughout the canopy. A few dead branches in a large mature tree is normal maintenance — we call that deadwood, and it's part of any proper pruning job. All of the major scaffold branches coming back brown on the scratch test is a different situation entirely.

5. A lean that wasn't there before, or visible cracking at the base. This one isn't just about whether the tree is dead — it's about immediate safety. A dead tree loses structural integrity as the wood dries out and decay sets in. A sudden lean after a windstorm, or cracks appearing at the root flare, means the failure risk is no longer theoretical. For emergency tree situations, don't wait for the next inspection cycle.

Large bracket fungus growing from a tree trunk — a sign of internal decay and root rot in Surrey trees
Photo by Nick Dubé on Pexels

Root and fungal problems — the ones under the surface

The scratch test tells you what's happening above ground. What's going on in the roots and the interior of the trunk is harder to see — and often more relevant to whether the tree is salvageable, or whether it's structurally compromised beyond what the crown is showing.

Mushrooms or bracket fungi growing at the base of the trunk. This is worth taking seriously. Bracket fungi — the shelf-shaped growths that stick out horizontally from the bark — and clusters of small mushrooms near the base are almost always signs of internal root or trunk decay. The fungal body you're looking at is just the surface expression. The mycelium has been working through the interior of the tree for years before that visible growth appears.

Surrey gets enough wind off the coast and through the Fraser Valley that a root-decayed tree near a structure is a genuine hazard, not a theoretical one. A tree can appear healthy in its crown right up until root failure causes it to topple.

Cankers, unusual bark discolouration, or oozing sap. These often indicate disease or pest activity killing the tree from the inside. Cytospora canker is common in BC conifers — it kills branches progressively and moves inward. Bronze birch borer does similar damage to birches, working from the top down over two or three seasons while the lower crown looks mostly fine. By the time the whole tree looks dead, the structural damage is already done.

Roots that are lifting, compacted, or recently disturbed. Construction damage, trenching for utilities, road salt runoff, and pavement over root zones all compromise the root system gradually. A tree can die slowly over five or six years from root stress sustained in a single construction season. The BC Ministry of Environment tree protection guidelines require a protection zone equal to the drip line radius — which is frequently ignored by contractors and almost never enforced on residential sites.

For any of these root or fungal signs, the only way to assess accurately is to have a certified arborist on-site. I can spot most of these from a walkround, but a proper assessment takes hands on the trunk and eyes at ground level.

Certified arborist climbing a tree in winter to assess its health — when to call a professional in Surrey BC
Photo by Dmytro Glazunov on Pexels

When to call an arborist (even if you're not sure)

You don't need to be certain the tree is dead before calling. Figuring that out is our job, not yours.

Call for a professional assessment when:

  • The tree is within fall distance of your house, garage, deck, fence, or power connection
  • The scratch test shows mixed results — partially dead, partially alive
  • You see bracket fungi or mushrooms growing at the base of the trunk
  • Any large limbs look like they're hanging without support, or have already partially detached
  • The tree leaned noticeably after a windstorm and the lean is new
  • You're buying or selling a property and a large tree is involved

You can probably wait when:

  • The tree is isolated in your yard, away from all structures, and looks simply dormant going into spring
  • It's February or March and you're not sure yet — wait for bud break and see what happens by May
  • The scratch test came back green in most spots and the tree is showing some new growth

I'll be direct about something: most trees people call us about are not dead. They're dormant, stressed, or dealing with a manageable issue. A healthy tree is worth keeping. If there's a real chance yours can recover, I'd rather tell you that and give you the treatment plan than quote for removal.

The ISA Canada arborist search lets you find certified arborists in your area if you want a second opinion. Certification matters — particularly if you need a written report for insurance or a strata council.

Arborist cutting a dead tree with chainsaw — dead tree removal cost in Surrey BC
Photo by Jacky on Pexels

What dead tree removal costs in Surrey — honest numbers

Nobody lists prices. We think they should.

ScopeRough range (CAD)
Small tree, under 5m (most ornamentals, young trees)$400–$900
Medium tree, 5–10m (mature birch, smaller maple, cedar hedge)$900–$2,000
Large tree, over 10m (mature maple, large Douglas fir, cedar)$2,000–$4,500+
Stump grinding (add to any of the above)$200–$600
Crane or elevated work platform requiredAdd $800–$2,000

A few honest caveats on the numbers. Dead trees often cost more to remove than living ones of the same size — not less. Dead wood behaves unpredictably under a chainsaw. Branches don't have the elasticity that lets you control their fall. Rigging has to be more conservative, which means more time. A tree that's been dead for two seasons is a different job than one that died in the last spring.

The cheapest quote for dead tree removal is rarely the cheapest outcome. I've followed up after other companies and fixed work that cost the homeowner far more than a proper job would have. One job last year — a dead cedar that had been quoted and done for $600 — required a return visit because a major limb was left in tension against the fence. The fence came down in the next windstorm. Getting it right the first time, with a site assessment beforehand, is the actual low-cost option.

Rule of thumb: get two quotes, confirm both include debris removal and an on-site assessment before any price is given, and ask specifically what happens to the stump. If a company quotes over the phone without seeing the tree — that's not a quote, it's a guess, and the difference lands on you.

For the full picture on tree removal pricing in Surrey, our tree removal cost guide covers the variables in more detail.

When not to call us

We'll tell you this even though it's not great for our booking calendar.

  • If your tree is clearly dormant — buds intact, scratch test returns green, a few new leaves pushing — wait. Give it until May. If it's still not moving by then, call.
  • If the tree is small (under 3 metres), isolated, and you're comfortable with a handsaw and basic safety — most homeowners can handle this safely themselves. The BC Ministry of Environment has guidance on what counts as routine garden maintenance versus work that requires a permit.
  • If your concern is a neighbour's tree — a conversation and photos go further than a call to a tree company at this stage. We can provide a written assessment if it escalates, but start with the talk.
  • If it's February and the tree is deciduous — it's almost certainly dormant. Wait for spring bud break before concluding anything.

Do give us a call if you're unsure whether the situation is safe. That conversation costs nothing. Guessing wrong on a tree near your house costs considerably more. See our full range of tree care services in Surrey if you're looking for what comes next.

Frequently Asked

Straight answers.

Can you tell if a tree is dead in winter when there are no leaves?
Yes — the scratch test works regardless of the season. Scratch a small patch of outer bark from any pencil-diameter twig: green, moist cambium underneath means the branch is alive; brown and dry tissue means it's gone. Dormant trees also keep live buds through winter — check the branch tips for tight, slightly moist buds. A dry, empty bud on every twig is a bad sign.
What is the scratch test for trees?
The scratch test is the quickest field check for tree health. Use your thumbnail or a small pocketknife to scrape a fingernail-sized patch of outer bark from a pencil-diameter twig or young branch. Living wood shows green, moist cambium just beneath the surface. Dead wood shows dry, brown tissue all the way through. Test five or more spots across the tree before drawing a conclusion — one dead twig doesn't mean the whole tree is gone.
Can a dead tree come back to life?
No — a fully dead tree cannot recover. Trees that appear dead after severe stress (drought, late frost, construction damage, pest attack) are sometimes dormant or partially dying, and those can sometimes recover with proper care and time. If the scratch test shows green cambium anywhere on the tree, there may be something worth saving. A certified arborist can assess whether recovery is realistic or whether removal makes more sense.
Is a dead tree dangerous?
Over time, yes. Dead wood loses moisture and flexibility, making branches brittle and unpredictable in wind. Internal decay sets in, often starting at the roots or trunk, and accelerates through Surrey's wet winters. A dead tree within fall distance of a structure, vehicle, power line, or person should be assessed within one season — not necessarily removed immediately, but looked at by a professional.
How long can I leave a dead tree standing?
It depends entirely on where it's standing. A dead tree isolated from structures, away from paths, and in a low-wind area can stand for several years before becoming a serious hazard. A dead tree within fall distance of your house, garage, shared fence, or power connection should be addressed within one season. Every year you wait, the wood becomes more brittle and the removal becomes harder to do safely.
How much does it cost to remove a dead tree in Surrey, BC?
Small trees under 5 metres typically run $400–$900. Medium trees (5–10 metres) run $900–$2,000. Large trees over 10 metres start around $2,000 and climb from there depending on access, rigging requirements, proximity to structures, and debris disposal. Stump grinding is almost always a separate line item — ask upfront. Dead trees often cost more to remove than living ones of the same size because the wood is less predictable under a chainsaw.
What should I do if my neighbour's tree looks dead?
Start with a conversation — bring photos, keep it low-key. If the tree is clearly posing a risk to your property and your neighbour isn't acting, get a certified arborist's written assessment documenting the hazard. BC property law means your neighbour has some obligation if their tree damages your structure, but the specifics are not simple. A written arborist report is your strongest first step.
Does home insurance cover removal of a dead tree?
Usually only if it falls and damages a structure covered under your policy. Preventive removal of a dead tree that hasn't fallen is almost never covered — that's considered your responsibility as the property owner. If a dead tree does fall on your house, document everything with time-stamped photos before any work starts and call your insurer before you call anyone else. The Insurance Bureau of Canada has clear guidance on what storm damage coverage typically includes.

Not sure? Just ask.

Call us — or don't, and keep staring at the tree.

If the scratch test came back brown in every spot, or there's fungal growth at the base, or the tree is within fall distance of anything you care about — give us a call. A site assessment is straightforward and you'll know where you stand within the hour.

If you're genuinely not sure, send us a photo first. We'll tell you honestly whether it's worth a visit. We'd rather talk you out of an unnecessary call-out than bill you for one.