Should I trust the contractor who disagrees with everyone else?
When a lone contractor is willing to use a method that an overwhelming majority refuses—such as a specific skylight mount or equipment pairing—homeowners are left guessing whether the dissent reflects a real technical barrier or just an avoidance of extra work. This conflict stops people from knowing which recommendation to trust, leaving them paralyzed between missing out on a preferred setup or risking system efficiency.
What the numbers show
Counted from the threads quoted below. How we count
- The most recent one is from October 2026.
- This comes up 19.3× more often in r/Roofing than across the site as a whole.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
Found another way around this?
Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.
- 1seeking advice on online forums2 people mentionedDid this help you?
- 2getting multiple quotes2 people mentionedDid this help you?
- 3Accepting the majority recommendation of the contractorsDid this help you?
- 4Searching for a contractor willing to perform the preferred installation methodDid this help you?
- 5seeking second opinions from additional contractorsDid this help you?
- 6Getting multiple quotes from local roofers and asking online forums for opinions on fairness and correct methods.Did this help you?
- 7Spending weeks researching and building a spreadsheet to compare quotes, equipment options, and installation details.Did this help you?
- 8getting additional quotesDid this help you?
- 9comparing skylight and flashing detailsDid this help you?
- 10looking at negative reviews for patternsDid this help you?
- 11Relying on manufacturer specifications or trusting that shorter runs make undersized wire acceptable.Did this help you?
- 12getting three quotes before evaluating project costsDid this help you?
- 13paying someone to do proper measuring and calculations or learning how to do it yourselfDid this help you?
- 14Asking online forums for unbiased opinionsDid this help you?
- 15Checking the original contract terms and bidsDid this help you?
- 16Getting multiple contractor quotes and comparing their recommendationsDid this help you?
- 17Seeking online feedback or crowd-sourced opinions on forumsDid this help you?
- 18Comparing line items independentlyDid this help you?
- 19Seeking public forum advice on pricing and contractor reliabilityDid this help you?
- 20Hiring additional contractors for more opinionsDid this help you?
- 21Asking competing contractors to use a standardized scope of workDid this help you?
- 22googling comparisonsDid this help you?
- 23asking friends for opinionsDid this help you?
- 24getting multiple contractor quotesDid this help you?
- 25hiring an independent structural engineerDid this help you?
- 26waiting a full 12 months to observe seasonal changesDid this help you?
- 27consulting online forums like Reddit for adviceDid this help you?
- 28Posting the itemized quotes on specialized internet forums to ask professionals for unbiased opinions.Did this help you?
- 29Requesting a Manual J load calculation to mathematically determine what size system the house actually needs.Did this help you?
- 30Opting for mid-range equipment to avoid the extreme costs of premium systems and the poor performance of budget ones.Did this help you?
In their words
Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.
“I have spoken to 3 contractors so far for comparative pricing with the first 2 planning on doing metal roofing. When I spoke with the third contractor he was adamant that I must do rubber roofing as he said it was best for flat or low-slope roofs where water might otherwise pool.”source ↗
“After googling comparisons, I'm leaning towards rubber roofing. But I wanted to come here for some opinions on whether the type roof I pick will make a huge difference?”source ↗
“I’ve had three contractors look at it and they’ve each proposed different solutions, ordered from cheapest to most expensive: torch-down patch ($500); shingles over the existing roof with step flashing ($1500); and a full replacement with the same type of rolled roofing “done correctly” ($2300).”source ↗
“I’m completely new to this so I have no idea which to choose, so would appreciate any advice here.”source ↗
“Any professional that are able to give me there opinion of what the correct way to get this mended would be and a cost estimate so I know im not being ripped off ?”source ↗
“I’ve had four roofers out to look at it and give a quote.”source ↗
“The first three recommended tearing up the roof and adding pitching.”source ↗
“The fourth said there is already a pitch, he believes there’s decay under the middle of the pitch causing an area that sags. But he wouldn’t recommend pitching it anymore, just fixing the pitch.”source ↗
“Not sure what to believe.”source ↗
“I've gotten quotes/opinions from several roofing contractors, and almost all of them won't do a curb-mounted skylight on this pitch — they only want to do deck-mount. I found one contractor who's willing to do curb-mount.”source ↗
“Given that the overwhelming majority are steering me toward deck-mount, should I just go with that instead of pushing for curb-mount with the one contractor willing to do it? Is there a real technical reason to avoid curb-mount on a steep pitch like this, or are they just avoiding the extra work?”source ↗
“instead i spent the last couple of weeks comparing quotes, equipment options, and installation details. every contractor seemed to recommend something slightly different, which made the process more confusing than i expected.”source ↗
“labor, warranties, and what was included in the install seemed to vary quite a bit depending on who i talked to.”source ↗
“Received a quote from Company A for a First Co ceiling coil paired with a Bosch 20SEER heat pump. Then Company B told me the Bosch unit is amazing but we would lose all of the efficiency benefits when paired with the First Co coil. Is this true?”source ↗
“My builder provided this heat loss calc. One HVAC contractor said we need a 2.5 ton pump, the other one said a 5 ton.”source ↗
“I recently had an electrician do a whole house electrical safety inspection, just for peace of mind. He said the 10 guage needs to be replaced with 8 guage.”source ↗
“The HVAC rep says it is fine. He says the unit will only very rarely draw full power. The city inspector says he can see both sides of the question and neither of them are technically wrong.”source ↗
“Who is correct? Is this a safety issue?”source ↗
“I got 2 quotes for AC replacement.”source ↗
“Are the prices reasonable? Which one would you go with and why? Please help!!”source ↗
“I decided to have Three more professional companies come out and quote me as well, but now i am overwhelmed.”source ↗
“Company 1: This company said 100K BTU was too large for my 2100 square feet of livable space... Company 2: This company said 100K BTU is actually needed in a house as old as mine”source ↗
“We want what will last the longest with good upkeep/maintenance, and the best value for our money. Can anyone help?”source ↗
“I just went through this myself so I understand your confusion.”source ↗
“i've started getting quotes for ac installation miami and, um, i'm getting completely different recommendations depending on who comes out. one company says i need a bigger unit, another says my current size is fine, and the prices aren't even close.”source ↗
“i just don't want to spend a bunch of money and realize later i agreed to something i didn't actually need.”source ↗
“Talk to two contractors and you'll get 3 opinions. No one ever has anything good to say about what the last guy did.”source ↗
“Why did I get so many different opinions about so much work, and none of it seemed to be right? Not only that multiple people from the same profession contradicted each other multiple times.”source ↗
“This is my first home and so I don't know the in's and out's of what needs to be done, correctly, and efficiently. 3 out of 4 quotes told me I should get indoor waterproofing (one of them was a national company and way over-priced so I'm not going to include them). The quote with both indoor or outdoor said he highly recommends exterior, but gave me an offer for indoor if I was interested.”source ↗
“I had to get my fence gate raised because now it was effectively unable to open without dragging into the dirt.”source ↗
“The landscapers didn't say anything about this, so I'm not sure if it's because the fencers are wrong, the landscapers don't know any better, or they were just lazy”source ↗
“Wanted to check with an experienced and unbiased group if the state my fence is in is no issue or if I should get this fixed before the snow falls.”source ↗
Where this came up
People with this problem also raised
- 2What to do when contractors give conflicting advice
- 25How to choose between job offers when you have a baby on the way
- 5How to compare HVAC replacement quotes
- 4Design-build vs separate contractors for a remodel
- 3How to handle a struggling contract-to-hire employee who isn't working out
- 2Who to believe when pest inspectors give conflicting advice?