Tree Trimming in Longmont, CO
Trimming in Longmont is mostly about weak wood. Many of the big trees over the older parts of town and along the St. Vrain are plains cottonwoods and Siberian elms, two species that grow fast and pay for it in brittle limbs. Add wet snow landing on trees still in leaf, winter downslope winds, ash under emerald ash borer pressure, and power lines owned by the city's own utility, and the job is less about shape than about which limbs come down before the weather takes them.
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What tree trimming in Longmont actually turns on
1.Cottonwoods shed their own limbs
Plains cottonwoods line the St. Vrain and the creeks and ditches that cross Longmont, and plenty of them now stand in back gardens. Cottonwood grows quickly and its wood is weak, and as the trees age they let go of dead and failing limbs, some of them very large. The useful work on a mature cottonwood is deadwood removal plus reducing the long limbs that reach over the house, the garage or the fence, rather than thinning the crown for looks. Photograph the whole tree and what sits under it, and ask in your job post for each bid to say which limbs the crew would take and why.
2.Siberian elms along the fences and alleys
Siberian elm seeds itself freely along the Front Range, and many Longmont lots have one growing out of a fence line, an alley edge or a corner nobody planted. The wood is brittle, the trees put on long whippy growth, and they break readily in wind and snow. Ask in your job post for each bid to say whether the crew would prune it or take it out: a volunteer elm tangled in a fence is often cheaper to remove than to keep pruning. If the trunk straddles the boundary, talk to the neighbour before the crew arrives, since the tree may be partly theirs.
3.Wet snow on leaves is the real storm here
Much of the limb damage in Longmont comes from wet snow arriving in late spring or early fall, while the trees are still in leaf. Leaves catch far more snow than bare twigs, and a limb that has carried winter snow for years can give way under one heavy autumn storm. Pruning ahead of it means taking weight off long horizontal limbs and removing the ones with cracks or weak forks, not shearing the outside of the crown. Winter downslope winds work on any limb the snow has already damaged, so a split limb is worth dealing with before the windy months rather than after.
4.Longmont Power & Communications owns the lines
Longmont runs its own electric utility, Longmont Power & Communications, so the lines along the streets and alleys belong to the city rather than to an investor-owned company. Clearance pruning around those lines is the utility’s call, and private crews are not permitted to work inside the restricted distance of energised conductors. If a wire runs through or near your tree, contact the utility before you book, ask how it handles clearance and the service line to your house, and say in the job post exactly where the wires run.
5.Ash in Boulder County is a treat-or-remove decision
Emerald ash borer was first found in Colorado in Boulder and is established in Boulder County, and ash is common in Longmont yards and along its streets. Pruning an infested ash that is not being treated rarely buys much, because the tree declines from the top down whatever is done to its limbs. The useful question is whether the tree is healthy enough to treat. Treatment for hire means applying a pesticide, which Colorado regulates through its Department of Agriculture, so say in the job post that you want the applicator licence named in any bid that offers treatment, and how the crew disposes of ash wood, since moving untreated ash firewood is one way the borer spreads.
6.Street trees belong to the city Forestry division
Trees in the strip between the sidewalk and the street in Longmont are generally the city's, maintained by its Forestry division, and are not usually yours to have pruned by a private crew. The same can apply to trees on the St. Vrain Greenway and other city land that overhang a back garden. Check with the Forestry division before taking bids on any tree near your frontage or a city path, and confirm which side of the line it stands on; a crew bidding on your other trees can usually tell you on sight.
Seasonal conditions in Longmont
Big cottonwoods and silver maples along the St. Vrain and the older neighborhoods shed dead limbs after summer downslope winds and the first heavy, wet snows of fall. Emerald ash borer reached Boulder County in 2013 and continues to drive ash removals across Longmont.
Permits and the right of way
Trees on private property in Longmont generally do not need a city permit to trim or remove. Trees in the public right-of-way — the strip between sidewalk and street — belong to the city and are handled by its Forestry division; a contractor can confirm which side of the line your tree is on before any work starts.
Permit rules vary by locality and change — confirm what applies to your property with your local authority before work is scheduled.
What tree trimming actually involves
Trimming sounds like the simplest tree job and is the one most often done badly. A tree does not heal a cut the way skin heals; it walls the wound off and grows around it, and every cut is a wound it manages for the rest of its life. So a good pruning job starts with a reason for each cut and usually ends with less taken off than the homeowner expected. A tree that finishes the day visibly shorter and rounder than it started has usually had the bad kind.
Starting from what the pruning is for
Clearing the roof, lifting a limb over the drive, taking dead wood out over the patio, letting light onto a lawn, and shaping a young tree are five different sets of cuts. A crew told only to "trim it" will choose the objective for you, and two crews will choose differently, which is why two trimming bids for the same tree can look unrelated. The trade has names for the common objectives: cleaning (dead, broken and diseased wood out), thinning (selective removal to open the crown), raising (lower limbs off for clearance) and reduction (shortening limbs to reduce height or spread). Asking for them by name makes bids comparable.
Cleaning out the dead wood
On a mature tree standing over a roof, a drive or somewhere people sit, removing dead, dying, broken and hanging limbs is the pruning with the clearest payoff. Dead wood is what falls first in wind, and it is often invisible from the ground because it sits high in a crown still full of leaves. A crown cleaning takes nothing living off the tree and is the one pruning job that is hard to overdo.
Getting clearance without wrecking the limb
Clearance from a roof or a wall is usually best achieved by shortening the limbs that reach it back to a side branch pointing away from the structure, not by cutting them off at the trunk. A big limb removed at the trunk leaves a large wound the tree may never close, and a limb cut back to nothing in particular throws a flush of shoots straight back toward the house. Lower limbs over a drive or a path can be raised, but on an older tree that is best done gradually, not all in one visit.
Reduction is not topping
A reduction cut shortens a limb back to a living side branch big enough to take over as the new end of the limb. Topping cuts through stems between branches at whatever height looks tidy. The difference matters: a topped tree answers with dense, fast, weakly attached sprouts that grow back quickly and fail more easily, and the stubs are an open door to decay. The national pruning standard (ANSI A300) and the International Society of Arboriculture both treat topping as unacceptable practice. Ask in your job post for each bid to say exactly where each cut will go, and be wary of one that offers to "take the top off" or "cut it back by a third".
Where the cut sits on the branch
Every branch joins its parent at a slightly swollen collar, and that collar holds the tissue the tree uses to seal the wound. A correct cut sits just outside it. A flush cut against the trunk removes the collar and leaves a wound the tree struggles to close; a long stub dies back and rots. Heavy limbs are cut in stages, so their weight does not tear a strip of bark down the trunk as they go. Wound paint is not needed and is generally not recommended.
How the climber gets up the tree
Climbing spikes, the spurs strapped to a climber's boots, punch a fresh wound into the trunk with every step. That is irrelevant on a tree coming down and harmful on one being kept, and the pruning standard says spurs should not be used to prune a tree except in narrow circumstances. A pruning climber should go up on ropes, or the work should be done from a bucket truck where one can reach. It is a fair question to ask before the day rather than notice afterwards.
Wires in the canopy, and whose each one is
Work within the restricted distance of an energised conductor is limited to line-clearance qualified crews, and an ordinary tree company may not put a climber or a pole saw there. The electric utility prunes around its own distribution lines on its own schedule. The service line from the pole to your house is often a different arrangement, and utilities commonly offer a temporary disconnect so a private crew can prune safely. Ask the utility before you book, and mention every wire through the canopy in the job post.
What moves the price of tree trimming
Trimming is priced on hours aloft and hours on the ground, and the tree itself is only one input. The same oak costs different amounts to prune depending on what you want from it, whether a bucket truck can reach it, what hangs beneath it, and what happens to the brush once it is down.
- What you are asking for
- Deadwood only, a full crown clean, clearance from the house, a reduction in height: scope is the largest variable in a trimming price and the one least often written down. A bid without a stated scope is a price for work nobody has defined.
- Climber or bucket truck
- A bucket truck that can drive up to the tree reaches most of the crown far faster than a climber can move around it. Where no truck can reach, or the tree is taller than the boom, every cut is made on rope, and the hours rise accordingly.
- What the crown hangs over
- Over open lawn, cut pieces are simply dropped. Over a roof, a conservatory, a fence or a parked car, each piece is roped and lowered, which turns one cut into a cut, a lower and a landing. Proximity to structures is worth describing carefully.
- Lines in or near the canopy
- Wires change who may do the work and may require the utility to disconnect or cover a line first. That is as much a scheduling constraint as a cost.
- How many trees, on one visit
- Getting a crew, a truck and a chipper to your property is a real share of a one-tree price. Several trees pruned on one visit are priced very differently from the same trees done one at a time.
- How long since it was last done
- A tree that has not been pruned in many years, or ever, carries more dead wood and more corrective work than one on a regular cycle. The first visit costs the most; maintenance visits after it are lighter.
- Brush and wood
- Chipping the brush and hauling everything away is the usual assumption and the most expensive option. Keeping the chips for a bed or the wood for the fire costs less. Say which you want.
We do not publish a local average for this work. A trimming price depends almost entirely on the scope you ask for, and "trim the oak" covers everything from an hour of deadwooding to a day of reduction cuts, so an average would describe nobody's job, and the number worth having is what crews covering Longmont bid on your actual scope.
Before you post a tree trimming job in Longmont
- Write down what you want the pruning to achieve, one line per tree: clear the roof, lift over the drive, take the dead wood out over the patio.
- Photograph each tree whole, from far enough back that it fits, and then the specific limbs you mean.
- Ask in your job post for every bid to describe the work in the standard terms (cleaning, thinning, raising, reduction) and to confirm in writing that nothing will be topped.
- Ask in your job post for each bid to say whether the climber will use spikes. On a tree being kept, the answer should be no.
- Say whether any wires run through or over the canopy, including the service line to your own house.
- Say whether a truck can get within reach of the tree, and where a chipper could stand.
- Decide what happens to the brush and the wood, and say so; it is a common reason two bids are not comparable.
- For flowering trees, ask in your job post for each bid to say when the crew would prune and why, since the wrong month removes next season's flowers.
- Before work starts, ask the pro you hire for current proof of general liability and workers' compensation cover, in the company's own name.
Tree Trimming in Longmont — FAQ
A big cottonwood keeps dropping dead branches in my Longmont yard. Should it be trimmed or removed?
Often it can be kept with regular deadwood removal and reduction of the limbs that reach over the house, but that depends on the trunk and the main unions, not on the dead twigs. Cottonwoods shed limbs as they age, so some drop is normal; large dead limbs, cracks where big limbs join the trunk, or decay in the trunk are the signs to take seriously. Photograph the whole tree, the trunk at ground level and anything beneath the crown, and post it so every bid sees the same tree, asking in the post for each bid to say whether the crew would trim it or take it down, and why.
Does a tree company in Longmont need a licence?
Colorado does not license tree care at the state level the way Maryland does, but some Front Range cities license tree contractors, Denver among them, and the rules differ from city to city. Check with the City of Longmont whether a licence applies to the work you want done, especially for any tree near the street. Separately, a company treating ash or other trees with pesticide for hire is regulated by the Colorado Department of Agriculture. Whatever the licensing answer, ask the pro you hire for proof of general liability and workers’ compensation cover before work starts.
Snow broke a limb on my tree and it is hanging in the crown. What should I do?
Keep people, cars and pets out from under it, and do not pull on it or climb up to it: a hanging limb can drop without warning, and a snow-bent limb can hold tension that makes cutting it dangerous without rigging. If it is resting on or near a wire, stay well away and call Longmont Power & Communications before anyone else. Otherwise, photograph it from the ground and post the job, describing where the limb would land, so the bids reflect the actual removal and any repair cuts back on the tree.
A company offered to top my tree to make it safer. Is that a good idea?
No. Topping, cutting stems off between branches at an arbitrary height, makes a tree less safe over time rather than more. The tree answers with a mass of fast, weakly attached sprouts that regrow the lost height quickly and are more prone to breaking off, and the cut stubs decay. The national pruning standard and the arborists' professional body both treat it as unacceptable. If height or spread genuinely needs to come down, ask for a reduction, which shortens limbs back to side branches that can take over, and ask in your post for each bid to explain where the cuts will go.
How much of the tree should come off in one visit?
Less than most people expect. Leaves are how a tree feeds itself, and a mature tree that loses a large share of its live crown at once is stressed and tends to respond with a flush of sprouts rather than with the tidier shape the owner wanted. Older trees tolerate heavy pruning worse than young ones. If you need a big change, the better route is to spread it over several visits a few seasons apart, and a good bidder will say so rather than take the larger single job.
When is the best time of year to have trees pruned?
Dead, broken or hazardous limbs: any time, and sooner is better. For most other pruning, late in the dormant season works well, with the leaves off and the structure visible. Trees that flower on last year's wood, such as cherries, dogwoods, redbuds and magnolias, are pruned just after they bloom, or the cut removes the flowers. Trees that flower on the current season's growth, such as crape myrtle, are pruned in late winter. Heavy pruning while new leaves are expanding in spring is best avoided, and where oak wilt is present, arborists avoid wounding oaks in spring and early summer.
The crew climbed my tree with spikes. Is that a problem?
For a tree that is coming down, no. For a tree being pruned and kept, yes: every step drives a spur through the bark and leaves a wound, and a full climb leaves a ladder of them up the trunk. The pruning standard says spurs should not be used when pruning except in narrow circumstances such as reaching an injured climber. Ask in your job post for each bid to say how the crew will get into the tree; rope access or a bucket truck are the normal answers.
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