Hagstrom & Sons Tree Service
Sonoma County · Since 1978
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Hagstrom & Sons Tree Service
Sonoma County · Since 1978

Hagstrom& SonsTree Service

A Certified Arborist on every job site — for forty-eight years.

Family owned and run since 1978. Pruning, removal, cabling and diagnosis across Sonoma County, seven days a week, with free estimates.

Call (707) 579-4374 Get a free estimate
1978
Family run since
48
Years in Sonoma County
#693877
CA contractor licence
7
Days a week
ISA
Arborist associations
What we do
Certified Arborist on every job site
Free estimates, seven days a week
Family owned and run since 1978
CA Lic. #693877 — 48 years local
What we do

Complete tree care for Sonoma County

Our services range from tree planting to tree removal. Whether you're planting or removing, we're here to help — with the tree's health in mind.

Pruning work on a mature tree

Tree pruning

Corrective and select branch pruning — for fencing, for branches over property lines, to protect utility lines, and for driveway obstructions.

Pruning & care →
Sectional tree removal in progress

Tree & stump removal

We like keeping trees alive and as healthy as possible — but sometimes a tree needs to go. We can successfully and safely remove almost any tree.

Tree removal →
Mature oaks in Sonoma County

Oak trees are our specialty

Sonoma County's oaks are slow-growing, protected in places, and unforgiving of bad pruning. They are the trees we know best.

Oak care →
Stand of pines being assessed

Hazard evaluation

Crown inspection, hazard evaluation, diagnosis and recommendations — a written opinion on whether that tree is actually a risk.

Consulting →
Healthy woodland canopy

Pest & disease control

Major diseases and insect infestations can kill a tree quickly and spread to the ones around it. Catching it early is most of the work.

Pest & disease →
A Hagstrom & Sons Tree Service truck

Deep root feeding & cabling

Deep root feeding, crown reduction and restoration, thinning and shaping, and safety cabling to keep a heavy limb where it belongs.

All services →

Why a Certified Arborist on site actually matters

Most tree work is irreversible. A bad cut doesn't grow back, and a tree that has been topped or over-thinned spends the next decade failing slowly.

"It is our mission to make Sonoma County a beautiful and safer place to live by servicing one tree at a time — with dedication to the highest quality of customer satisfaction while keeping the trees health in mind."

That is why there is a Certified Arborist on every job site, not just on the estimate.

  • Cuts made to the branch collar, not flush and not stubbed
  • Crown reduction and restoration instead of topping
  • Hazard assessed before anything is removed
  • Free estimates — and an honest answer if it needs nothing
Proper pruning technique diagram showing undercut, second cut and final cut at the branch collar
1978
Serving Sonoma County since
48
Years, family run
7
Days a week
Free
Estimates
How it started

Two brothers, one truck, 1978

"I started this business back in 1978 with the idea of working on trees with my brother. We slowly worked this business from the ground up but then my brother decided he didn't want to pursue tree service any more."

"From there I built a solid customer base in Sonoma County and have been making people happier and their homes safer ever since."

Hagstrom & Sons Tree Service Family owned and run · Sonoma County · CA Lic. #693877
Credentials

Where we hold membership

Three industry bodies, and a California contractor licence held since long before most of our competitors existed.

Member, National Arborist Association International Society of Arboriculture Tree Care Industry Association
Where we work

Santa Rosa and across Sonoma County

Home base

Santa Rosa

  • Santa Rosa
  • Roseland
  • Rohnert Park
  • Cotati
  • Penngrove
North county

Windsor & Healdsburg

  • Windsor
  • Healdsburg
West & south

Coast and valley

  • Sebastopol
  • Sonoma
  • Bodega Bay
All service areas →
FAQ

Questions we get

Do you charge for an estimate?
No — free estimates. Call and describe the tree, or we'll come and look at it.
Is a Certified Arborist really on every job?
Yes. That's the commitment, and it's the reason the work holds up: the person deciding where the cut goes is qualified to make that call.
What days are you open?
Seven days a week, 7:00am to 5:00pm, Monday through Sunday.
Does my tree actually need removing?
Often not. We like keeping trees alive and as healthy as possible. There's a full list of the genuine reasons for removal on our tree removal page — if none of them apply, we'll say so.
Do you remove the stump too?
Yes — tree and stump removal, including grinding.
Are you licensed?
Yes. California contractor licence #693877, and we're a member of the National Arborist Association.

Got a tree you are worried about?

Free estimates, seven days a week, and a Certified Arborist on every job site. Call and describe it — we will tell you honestly whether it needs work.

Call (707) 579-4374 Request a free estimate