Hiring a multifamily siding contractor in Minnesota rests on one principle: make every vendor price the same defined project, so a low number reflects efficiency rather than omissions. The path is to write a clear RFP with a fixed scope, require itemized bids (tear-off, rot repair, the water-resistive barrier, flashing, trim, disposal, access, warranty), compare them line by line, vet the crews, and confirm permits and inspections. Get the scope right first and every later step becomes defensible.
This guide is written for the people who carry the risk — boards, community association managers, and apartment owners — not for contractors. It connects the four parts of a clean procurement (RFP, bid contents, bid comparison, vetting) plus the Minneapolis permit-and-inspection realities, and links to a detailed spoke for each.
Why is multifamily siding bidding so risky?
Multifamily siding bidding is risky because the bids you receive often describe different projects while looking like the same one — and the cheapest bid is frequently the one that quietly omitted tear-off, rot repair, flashing, or trim. On a six-figure, occupied-building project, those omissions become change orders mid-stream, when the board has no leverage and residents are already living through the disruption. The risk isn’t paying too much; it’s approving a number that balloons.
Minnesota sharpens that risk. The two failure histories under the metro’s buildings — stucco/EIFS moisture failures and the LP/hardboard class action — both began as water getting behind the wall. A bid that skimps on flashing and the water-resistive barrier is, in effect, pricing the next one of those failures. A disciplined RFP and a fixed bid format exist to move that risk off the board and onto a scope every vendor has to answer.
Reviewed against public source material from Ben Juncker and Craftsmans Choice, without presenting their contractor credentials as this sites own.
What are the four steps to a clean bid process?
The four steps to a clean bid process are: (1) write an RFP that defines the scope, (2) require a complete, itemized bid format, (3) compare bids line by line on the same scope, and (4) vet the contractor’s qualifications and references. Skipping any one of them reintroduces the risk the others remove — a great RFP with no bid format still produces uncomparable quotes, and a perfect comparison of unvetted contractors still picks a bad crew.
| Step | What it does | Spoke |
|---|---|---|
| 1. Write the RFP | Defines one project everyone bids | How to write a multifamily siding RFP |
| 2. Set the bid format | Forces tear-off, rot, WRB, flashing, trim, etc. to be itemized | What a real siding bid must include |
| 3. Compare line by line | Reveals omissions and apples-to-apples price | Comparing siding bids line by line |
| 4. Vet the contractor | Confirms they can do occupied multifamily work | Questions to ask a contractor |
What should the RFP define?
The RFP should define the building, the scope, the bid format, and the rules of the process — so every contractor responds to an identical request. At minimum it specifies the property and number of buildings, the existing siding and known problems, the desired material(s), the required scope (tear-off, rot allowance, WRB, flashing, trim, disposal, access, resident communication, warranty), the bid-submission format, the timeline, and how bids will be evaluated. A vague RFP guarantees uncomparable bids.
The single most valuable thing an RFP does is force the scope to be the same. When the RFP says “include a rot/sheathing-repair allowance of [X] and price the water-resistive barrier and flashing as separate line items,” every bid has to show those numbers — and the bid that “forgot” them stands out immediately. See the full template in how to write a multifamily siding RFP.
What does a complete bid actually contain?
A complete multifamily siding bid spells out the whole exterior package: material and profile, full tear-off, a sheathing/rot-repair allowance, the water-resistive barrier, all flashing (including kick-out flashing), trim, disposal, access equipment, a resident-disruption plan, warranty terms (labor and material), and clearly separated alternates for phasing. When a bid omits one of these, it hasn’t found a saving — it has left a cost off the page, and that cost returns as a change order.
The line items that most often hide in incomplete bids are the ones that caused Minnesota’s historic failures: the WRB, flashing, and the rot allowance for the damage found once the old siding is off. Those are non-negotiable on any wall in this climate. The detailed checklist — the signature Replacement Scope Map line-items — is in what a real siding bid must include, and you can have a scope reviewed via siding bid scope review.
How do you compare bids that look nothing alike?
You compare mismatched bids by normalizing them onto one scope sheet — listing every required line item down the side and each contractor across the top — then filling in each bid’s number (or “not included”) for every line. This converts three documents that look different into one apples-to-apples grid, instantly exposing what a low bid left out and turning “cheapest” into “cheapest for the same complete project.” Without normalization, you’re comparing prices for different work.
The grid also reframes the conversation with owners: instead of “Contractor A is $40,000 cheaper,” it becomes “Contractor A is cheaper because they excluded the rot allowance and priced a thinner warranty.” That’s a defensible basis for a vote. The full method, with a worked example, is in comparing siding bids line by line.
How do you vet the contractor, not just the price?
You vet the contractor by confirming they actually do occupied-building multifamily work, are properly licensed and insured for it, document everything board-ready, and have references on comparable Twin Cities projects. Price tells you nothing about whether a crew will disappear mid-project, mishandle resident logistics, or cut the flashing corners that caused the last failure. The vetting questions are where you find that out before you sign, not after.
Core things to confirm:
- Minnesota contractor licensing and current insurance appropriate to multifamily scope
- Direct experience with occupied multifamily (apartments/condos/townhomes), not just single-family
- References from comparable local projects you can actually call
- A clear resident-communication and access plan
- How they handle hidden rot, change orders, permits, and inspections
The full list is in questions to ask a multifamily siding contractor.
What about permits and inspections in Minneapolis?
In Minneapolis and across Minnesota, re-siding requires a permit and is inspected — typically a water-resistive-barrier/rough inspection before the new siding goes on, an intermediate inspection for any sheathing work, and a final inspection of the finished siding, trim, and flashing (MN DLI re-siding fact sheet). Kick-out flashing must be installed when re-siding. A serious bid anticipates this path; a bid that treats permits and inspections as afterthoughts is a warning sign.
For multifamily, jurisdiction can matter: larger or attached structures may fall under the commercial Minnesota Building Code rather than the Residential Code depending on construction type and number of units (UpCodes) — confirm which applies. The board-ready walkthrough is in Minneapolis siding permits and inspections.
Frequently asked questions
Q: How do I make siding bids comparable? Define the scope in the RFP, require an itemized bid format, then normalize every bid onto one scope sheet — each required line item down the side, each contractor across the top. That exposes omissions and turns “cheapest” into “cheapest for the same complete project.”
Q: Why is the lowest siding bid often a problem? Because it’s frequently the lowest by leaving out tear-off, the rot/sheathing-repair allowance, the water-resistive barrier, flashing, or trim. Those omissions become change orders mid-project, when the board has the least leverage. The lowest complete bid is what you want, not the lowest number.
Q: Do I need a permit to re-side a multifamily building in Minnesota? Yes. Re-siding requires a permit and inspections (WRB/rough, intermediate for sheathing work, and final), and kick-out flashing must be installed. Larger or attached multifamily may fall under the commercial building code — confirm jurisdiction. See Minneapolis siding permits and inspections.
Q: What should I ask a multifamily siding contractor before signing? Confirm licensing and insurance for multifamily, direct experience with occupied buildings, callable local references, their resident-communication and access plan, and how they handle hidden rot, change orders, permits, and inspections. See questions to ask a contractor.
Last updated: 2026-06-27. Part of the hiring and bidding guide series. Ready to make your bids comparable? Get a siding bid scope review.