It's the third Tuesday in October. Your best install crew is parked outside 42 Maple Grove at 7:40am with 180 feet of 6-inch K-style on the trailer, and nobody is home. The job is at 42 Maple Court. The address was right in the estimate email, wrong on the whiteboard, and the whiteboard is what got photographed and texted to the foreman the night before.
Forty minutes of drive time. A homeowner at Maple Court who watched two guys not show up during her window. A crew that now starts a full-day install at 9:15 and finishes in the dark or comes back Thursday.
Nobody made a stupid mistake. The information just lived in four places and one of them was out of date.
That's the whole problem with running a gutter company on spreadsheets. It isn't that spreadsheets are bad. It's that they don't tell you when they're wrong, and they don't do anything when nobody looks at them. Every sign below is a version of the same failure: information that exists but doesn't move.
Work through the nine. Be honest about how many apply.
The Nine Signs
1. Your cleaning renewals depend on someone remembering
You cleaned 340 gutters last autumn. How many of those customers have you contacted this year?
If the answer is "the ones who called us," you're leaving the most reliable revenue in the business on the table. Cleaning and small repairs are what carry you through the months when nobody is buying a full replacement. A customer who had you out last October is the cheapest sale you will ever make — and they'll happily go with whoever knocks first.
The spreadsheet version of this is a tab called 2025 Cleans with a column marked "call back?" that nobody has filtered since March. It's not a system. It's a record of things that already happened.
A real renewal process means every completed clean automatically schedules a follow-up 11 months out, with the property details, the last price, and any notes about the awkward roof pitch at the back already attached. That's the kind of thing job-management software like ExteriorPro handles without anyone thinking about it — the recurring job gets created when the last one is marked complete, and it shows up in someone's queue at the right time of year.
2. You price linear-foot work from memory and get burned on the odd ones
Straight 5-inch aluminium on a single-storey ranch, you can quote in your sleep. You know your number per foot, you know your margin.
The problems are the jobs that aren't that. Three-storey access. Copper half-round. A fascia that needs replacing before anything mounts to it. Eleven inside and outside corners on a house with four different roof planes. Twenty-two feet of run you can only reach off a ladder standing in a flower bed.
When your pricing lives in a spreadsheet, those variables get handled by the estimator's gut. Sometimes the gut is right. Sometimes you find out three weeks later that the job that "felt like about eight grand" cost you £8,400 in labour and material.
The tell: you can't say what your gross margin was on your last ten installs without a couple of hours of work. If you can only see profitability at the company level at year end, you're flying on averages, and averages hide the jobs that are quietly killing you.
3. Two people have to talk before anyone knows where the crew is
Ask yourself what happens when a customer rings at 11am asking whether today's crew is still coming.
If the answer involves your office person texting the foreman, waiting, then ringing the customer back — that's a five-minute task that happens fifteen times a week. That's over an hour of pure coordination overhead, every week, generating nothing.
Scheduling in a spreadsheet is a snapshot. It's accurate at the moment somebody typed it and decays from there. The crew doesn't update it. Rain doesn't update it. The install that ran two hours long doesn't update it.
4. Change orders happen verbally and get invoiced from memory
The homeowner asks the crew to add a downspout on the north corner while they're up there. Reasonable ask. Crew does it, mentions it to the foreman, foreman mentions it to you on Friday, and by then nobody's sure whether it was one downspout or two, whether it needed an extra elbow, or whether you quoted them a price on the spot.
Multiply by every job. Somewhere between 2% and 5% of your revenue disappears in this gap, and you'll never see it on a P&L because it was never invoiced in the first place.
If a crew member can't add a line item, photograph it, and get the customer to approve it from the driveway, you're relying on Friday afternoon recall. Recall loses.
5. Gutter guard upsells depend on who's on site that day
Guards are among the best-margin products you sell. They also get sold wildly inconsistently, because whether the conversation happens at all depends on whether the person on site is comfortable having it.
Look at your last 50 installs. What percentage attached a guard? If you don't know that number, you can't improve it. If you do know it and it's under 30%, you have a training and process problem you can fix this quarter without spending a penny on marketing.
A spreadsheet won't tell you the attachment rate by estimator, by job type, or by neighbourhood. It'll tell you what you sold, if someone remembered to type it in the right column.
6. Your lead follow-up stops after one email
Someone fills in the form on your site at 8pm. You send an estimate Wednesday. They don't reply. What happens next?
For most gutter companies: nothing. The row sits in the spreadsheet with "sent" in the status column and stays there. Meanwhile two other companies quoted the same house and one of them rang on day four.
A lot of gutter work is comparison-shopped, and homeowners are being told — by every article they read — to interview several contractors and ask detailed questions. The one who stays in contact usually wins, not because they're cheapest, but because they're the one who's still there when the homeowner is ready to decide.
Track how many of your quotes get one contact and no more. If it's most of them, that's not a lead problem. It's a follow-up problem, and it's the cheapest one on this list to fix.
7. You can't answer basic questions about last season
Try these:
- What did you make per crew day in September?
- Which lead source produced your five highest-margin jobs?
- What's your average time from estimate sent to job scheduled?
- How many callbacks did you have on installs from last spring, and what caused them?
If answering any of those means opening three files and building a pivot table, you're making decisions from vibes. You'll expand into the wrong service line, hire at the wrong time, or keep spending on an advertising channel that produces high volume and terrible margins.
The point isn't dashboards for their own sake. It's that when the same information gets captured once, in the course of doing the work, the answers are already there.
8. Callbacks aren't tracked back to the job or the crew
A section sags eighteen months in. Hangers were spaced too far apart, or the wrong fastener went into a fascia that couldn't hold it, or a run over 40 feet got installed with no allowance for thermal expansion and it's pulled at a seam.
You send someone out, they fix it, and it's over. What you don't have is a record: which job, which crew, which materials, what went wrong, what it cost you in labour to put right.
Do that for a year and patterns show up. One crew's callbacks cluster around a specific detail. One product line fails more than the others. One estimator consistently underspecs the hanger count. None of that is visible when every callback is treated as an isolated annoyance and logged nowhere.
9. Onboarding a new hire takes weeks because the knowledge is in your head
You hire an estimator. How long before they can quote a job without you checking it?
If the answer is months, that's because your pricing logic, your material preferences, your standard exclusions, and your approach to difficult access all live in your head and in a spreadsheet only you fully understand. That's a hard ceiling on growth. You cannot run three crews if every quote passes through one person.
Standardised estimate templates with your material costs, your labour rates, and your standard line items built in mean a new estimator produces a defensible number in week one. It also means your pricing doesn't drift when you're not looking.
Scoring Yourself
Zero to two signs. You're fine. Spreadsheets are working. Come back when you add a second crew.
Three to five. You're losing money in specific, identifiable places. Pick the two that cost the most — usually renewals and follow-up — and fix those first. You may not need to change everything.
Six or more. The admin load is now a real constraint on how big you can get. Every new job adds coordination overhead, and you're absorbing it personally in evenings and weekends. This doesn't resolve by trying harder.
The point of this audit isn't that software fixes everything. Plenty of gutter companies run well on paper and habit. But the ones that stall usually stall for the same reason: the owner became the integration layer between sales, scheduling, crews, and invoicing, and there are only so many hours in a week.
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