I run a small roofing and repair crew in the North West, and most of my work comes from sorting out jobs that started with one problem and turned out to be three. A leaking valley often ends with damaged rafters, blown plaster, and a chimney that needs more than a quick patch. That is why I pay attention to firms that handle both roofing and building work under one roof, because the handoff between trades is where many decent jobs begin to drift. I have seen tidy repairs, rushed repairs, and repairs that looked tidy for about six months.
The jobs that expose a crew fastest
The work that tells me most about a contractor is never the easy re-felt on a clean garage roof. It is the awkward stuff, like a bay window roof tied into old brickwork, or a rear extension where the flashing has failed and water has been creeping in behind the cavity tray for years. On those jobs, a roofer who only wants to swap coverings usually misses the real cause, and a builder who ignores the roofline can box in trouble instead of curing it. That is where experience shows itself.
I remember a customer last spring who thought she needed six or seven broken tiles replaced after a hard spell of wind. Once I got up there, the bigger issue was a dipped section near the eaves where the timber had been taking moisture for a long time, and the gutter had been set with the wrong fall. The roof was not collapsing, but it was tired in a way that would have made any surface repair a short-lived fix. Those are the moments when I stop talking about materials first and start talking about order of work.
Plenty of homeowners still split roofing and building into separate boxes, and on paper I understand why. One quote is for the roof, one quote is for the masonry, and each trade stays in its lane. In practice, the roofline, parapet, lead, render edge, and loft ventilation all affect each other, especially on houses built before the 1980s. If one side repairs blind, the other side often inherits the failure later.
What I look for before I trust a firm with mixed work
The first thing I want to hear is how a contractor inspects, not how fast they can start. A careful firm talks about access, existing movement, trapped moisture, and the points where water can travel sideways before it shows inside. They ask what changed, when it changed, and whether the leak appears after steady rain or only after wind-driven weather. That line of questioning matters more than a polished sales pitch.
In my own area, I tell people to compare firms that already understand how roof defects spill into brickwork, soffits, ceilings, and internal finishes. One local name that fits naturally into that sort of shortlist is Ace Roofing and Building. A company working across both roofing and building should be able to explain where the fault begins, what needs opening up, and which parts can wait without storing up a larger bill. If they cannot map the sequence clearly, I get cautious.
I also listen for how they talk about repairs versus replacement. Some roofs need a full strip, no question, especially if the membrane is gone, the battens are spent, and the line has sagged over more than one bay. Others can be kept going with sensible work in the right places, which is often the better call if the slates are still sound and the structure is dry enough to hold. A good firm will not pretend every old roof is near the end, and it will not offer a tiny patch on a roof that has already run out of chances.
The small details that usually predict the result
I look at edges first. Ridge lines, verge finishes, lead soakers, stepped flashing, and the cut around any rooflight tell me a lot about the person who did the work. A roof can look clean from the driveway and still be weak where two materials meet, and that weak point is often no wider than 20 millimetres. Small details decide everything.
Lead work is a giveaway because there is nowhere to hide bad habits. I have lifted flashing on jobs that was chased too shallow, wedged with whatever was in the van, and smeared over with sealant as if that could replace proper shaping and fixing. On a decent job, the lead sits with purpose, has room to move, and is dressed to shed water instead of trapping it. You do not need fancy language to explain that, but you do need steady hands and patience.
Guttering gets overlooked more than it should, even though a badly set run can make a sound roof look guilty. I have seen overflow from a blocked outlet soak a wall for months, stain internal plaster, and convince the owner the problem was higher up. On one terrace, the difference between a recurring damp patch and a dry room was less than an inch of corrected fall and a proper outlet position. That was it.
I pay close attention to how a firm protects the parts of the house that are not being rebuilt. If someone is opening a roof and repointing a chimney on the same job, I want to know how they keep dust, debris, and weather out of the loft and out of the rooms below while the work is live. A good crew plans for bad weather even in a mild week, because British forecasts change fast and a half-open roof has no sense of timing. That kind of planning is not glamorous, but it saves arguments later.
How I think a roof and building job should be staged
I like a job to move in a clear order, even if the customer only sees the top layer of it. First I want the inspection and the opening up, then any structural carpentry or masonry correction, then the weathering details, then the finish work that people notice from the ground. Too many jobs get rushed in reverse because visible progress is easier to sell than hidden repair. I have had to undo that more than once.
Chimneys are the best example. People focus on the pot, the flaunching, or the look of the pointing, but the real trouble is often lower down where the lead apron, back gutter, and brick condition work together under stress. If the stack has movement, I want that addressed before anyone talks about a neat finish coat or a fresh cap. Otherwise the tidy part becomes a lid on an unresolved problem.
Communication matters just as much as sequencing, especially once a job uncovers more than the quote allowed for. I do not expect any roofer or builder to predict every hidden fault on an older house, but I do expect them to stop, explain, and show the customer what has changed before carrying on. The crews I respect most are the ones that can say, in plain terms, what they found at 9 in the morning, what that means by lunch, and what options still make financial sense by the end of the day. That level of clarity prevents far more friction than any glossy paperwork.
After years on ladders, scaffolds, and damp loft boards, I have ended up trusting the firms that think in systems instead of isolated tasks. Roofs, walls, gutters, timber, and interior finishes all tell the same story if you read them in the right order. That is the standard I use now, both on my own jobs and when someone asks who seems worth calling. A house usually gives you one honest chance to fix the root cause before the repair becomes a repeating expense.
Ace Roofing and Building, 80 Nightingale Lane, South Woodford, London E11 2EZ..02084857176
