Commercial roof maintenance services are sold as an annual arrangement: somebody walks your roof on a schedule, clears what needs clearing, fixes what is small and reports what is not. The work itself is well understood and does not vary much between competent contractors. What varies enormously is the agreement, and that is what decides whether the money buys maintenance or just a survey.
The useful way to read a proposal is as a commercial document rather than a technical one. Three questions settle most of it: what happens on a visit, what happens to the defects the visit finds, and what happens when the roof leaks between visits.
What a visit should cover
A scheduled visit on a commercial flat roof is a defined list, and the list should be in the agreement rather than left to the day:
- Clear every drain, sump, scupper and gutter, and record what came out.
- Walk and examine the base flashings at every wall, curb and penetration.
- Check the perimeter edge metal and its laps.
- Examine the field for splits, punctures, blisters and open laps.
- Note standing water, and where it stands.
- Check sealant and termination details.
- Record the condition around every unit that gets serviced.
- Photograph each defect, located on a roof plan.
Our page on building a roof maintenance plan covers how to set the frequency for your particular roof. Two visits a year is the usual commercial standard, placed before and after the season that does the damage where you are.
What happens to the defects
This is the clause that separates the two kinds of agreement. One kind inspects and reports. The other inspects, fixes the small things on the spot and quotes the rest.
A workable arrangement states a value below which minor repairs are completed during the visit without a separate approval, and a rate that applies above it. Without that threshold, every sealant joint and loose fastener becomes a quotation, an approval and a second visit, and in practice most of them are never done.
| Clause | What to look for |
|---|---|
| Minor works threshold | A stated value, with examples of what falls under it |
| Repair rate | Hourly or day rate, plus materials, stated in the agreement |
| Authorization route | Who approves, and how quickly |
| Priority flagging | Defects marked urgent, planned or monitor |
Reporting that is worth keeping
The deliverable from each visit should be a dated report with photographs keyed to a roof plan, a defect list carried forward from the previous visit, and a note of what was done. That record does several jobs at once: it satisfies the maintenance conditions most manufacturer warranties carry, it supports a future insurance or capital decision, and it shows whether the roof is deteriorating or holding.
Ask what happens to the records if you change contractor. They are your documents, and a contractor who treats them as theirs is worth a question.
Comparing two proposals fairly
Issue both contractors the same written scope and the comparison becomes straightforward. Issue none and you are comparing two different products with one number each. Six items to line up side by side:
- Visits per year, and when. Two visits timed around the damaging season are worth more than three at arbitrary intervals.
- Whether drain and gutter clearing is in the visit or charged when it happens. This is the commonest difference between a low figure and a higher one.
- The minor works threshold, and what each contractor says falls under it.
- The repair rate, and whether travel and minimum charges apply to a call that arises from their own visit.
- Response times, stated in hours and working days rather than in adjectives.
- The reporting, and whether photographs are located on a plan or simply attached.
Then ask one question that is on neither proposal: who actually walks the roof. Where the same person returns each year, the second visit finds what the first could not, because there is something to compare against.
When maintenance is the wrong purchase
An agreement priced on a roof that is already failing buys attendance rather than improvement. Where the insulation is wet across a significant area, or splits are running over the deck joints, the money is better spent establishing the extent first. A moisture survey gives a figure to plan against.
Where to go next
If the roof is already in poor condition, maintenance is the wrong starting point and a condition survey is the right one, because an agreement priced on a failing roof mostly buys repeat attendance. Our page on preventative roof maintenance covers what a schedule reliably prevents, and roof maintenance programs sets out how we structure one.
Common questions
What should a commercial roof maintenance agreement put in writing?
The roof it covers by area and system, the number of visits a year and roughly when, what is done on each visit, what you receive afterwards, how repairs found on the visit are authorized and priced, the response time for a leak, and the term and notice on both sides.
- The roof inventory, by area and by system, not just the address
- Visit count and the season each one falls in
- The task list for a visit, item by item
- The deliverable: report, photographs and a defect list
- How a found repair is authorized and what it is charged at
The item most often missing is the fifth. A visit that identifies a defect and stops there leaves the owner with a list and no route to action, and the following year the same list arrives slightly longer. An agreement that sets a value below which minor repairs are done on the visit, and a rate above which they are quoted, turns the inspection into maintenance. Without it you are buying a survey and calling it a plan.
How is a commercial roof maintenance contract priced?
Usually as an annual sum per roof, built from the area, the number of visits and how much work the roof needs each time. A rate per square foot per year is a useful comparison figure but a poor basis, because access and complexity move the number more than area does.
- Area sets the floor, not the price
- Access, height and fall protection add real cost
- Penetration count drives how long a visit takes
- Drain and gutter clearing is sometimes priced separately
- Repairs are normally outside the annual sum
Comparing two annual figures without comparing the scope behind them is the usual mistake. A lower sum frequently means fewer visits, a shorter task list, or clearing excluded from the visit and charged when it is done. Ask both contractors to price the same written scope, and ask each to state the hourly or day rate that applies to repairs found during the visit. That second number is often where the real cost of the arrangement sits.
What is normally excluded from a maintenance agreement?
Storm damage, repairs beyond a stated value, anything caused by other trades on the roof, wet insulation and any work on rooftop equipment that is not roofing. Most agreements also exclude the consequences of a defect the owner was told about and chose not to correct.
- Damage from a named storm or a weather event
- Repairs above the minor works threshold in the agreement
- Damage caused by mechanical contractors or tenants
- Removing and replacing wet insulation
- Work on units, ducts, cables and anything not the roof
None of these exclusions is unreasonable, and an agreement without them should be read more carefully rather than less. The one worth negotiating is the third. On a roof with regular service traffic, somebody will damage the membrane, and an agreement that simply excludes it leaves the owner to establish who. A visit record that notes the condition and who has been on the roof since the last visit is what makes that question answerable.
What response time should a maintenance agreement give for a leak?
A stated number of hours for an emergency attendance and a stated number of working days for a non urgent call, both measured from your notification rather than from when the contractor logs it. Vague wording such as prompt or as soon as possible is worth replacing before signing.
- Separate emergency and routine response times
- The clock should start at your notification
- Out of hours contact details, named rather than general
- What the first visit is expected to achieve
- How emergency attendance is charged
The practical value of a maintenance agreement is often realized on the day of a leak rather than during the scheduled visits, because the contractor already has the drawings, the history and the roof in their records. That advantage only exists if somebody answers. Ask how out of hours calls are handled, and whether the response time is contractual or aspirational. The first attendance is usually about stopping water rather than repairing the roof, and the agreement should say so plainly.
Who is responsible for roof access and safety during a maintenance visit?
Both parties hold part of it. The building owner provides safe means of access and tells the contractor about hazards on the roof. The contractor is responsible for how its own people work once they are up there, including fall protection and anything hot.
- Safe access: ladder, hatch or stair, in working order
- The owner discloses known hazards, including fragile areas
- The contractor provides its own fall protection and training
- Permits for hot work and confined spaces, agreed in advance
- A record of who went on the roof and when
The item that causes trouble on an older building is the access route itself. A portable ladder leaned against a parapet is not safe means of access, and a contractor that declines to use one is behaving correctly rather than awkwardly. Resolving access once, with a fixed ladder or a hatch, usually costs less than the repeated cost of working around it, and it makes the roof easier to maintain for everyone who follows.