Founder1990
Eric W. Ernst
President
Started in the roofing trade more than 35 years ago. Built a reputation on skilled craftsmanship, reliability, and a commitment to doing things the right way. Still walks every job site.
35+Years in the trade
Two generations.
One standard.
Eric Ernst founded Allied Construction in 1990. His son Adam grew up on job sites. Together, they have completed over 5,000 roofing, siding, window, and gutter projects across the Twin Cities metro.
Founded
1990
Projects completed
5,000+
BBB rated
A+
Continue
BBB A+ Since 2014◆
MN License #BC630424◆
5,000+ Projects◆
Father & Son Team◆
Family-Owned · Since 1990◆
Watertown, Minnesota◆
Full Exterior Services◆
Licensed & Insured◆
BBB A+ Since 2014◆
MN License #BC630424◆
5,000+ Projects◆
Father & Son Team◆
Family-Owned · Since 1990◆
Watertown, Minnesota◆
Full Exterior Services◆
Licensed & Insured◆
01 · The Legacy
Father and son.
Thirty-five years running.
Eric Ernst entered the roofing trade in 1990 and built Allied Construction into one of Minnesota's most trusted exterior contractors. His son Adam grew up on the crew. Today, father and son run the business together, the same way it started: show up, do it right, stand behind the work.
Next Generation2ND GEN
Adam Ernst
Co-Owner
Grew up in the business. Knows every crew member, every supplier relationship, every system. Brings the next generation's energy while keeping his father's standards intact.
2ndGeneration at the helm
1990
Year founded
5,000+
Projects completed
A+
BBB rating since 2014
2
Generations of Ernsts
02 · The Exterior
Four trades.
One crew, one call.
Roofing, siding, windows, gutters. Most contractors subcontract half their work. Allied keeps it all under one roof, so the same team that tears off your shingles also wraps your fascia and hangs the gutters.
01DISCIPLINE
Roofing
Complete roof replacement and repair for Minnesota homes and businesses. Asphalt, architectural shingle, and metal systems built for the Twin Cities weather pattern.
- Full Replacement
- Storm Repair
- Inspections & Maintenance
02DISCIPLINE
Siding
Vinyl, aluminum, steel, and cedar siding. Insulated options for Minnesota winters. Custom bent metals onsite for lineals, window wraps, and crown moldings.
- Vinyl & Aluminum
- Steel & Cedar
- Insulated Systems
03DISCIPLINE
Windows
Energy-efficient window replacement for existing homes and new construction. Proper flashing and integration with roofing and siding work.
- Energy Efficient
- Custom Sizes
- Full Integration
04DISCIPLINE
Gutters
Seamless gutter installation and gutter guard systems. Proper drainage protects your roof investment and your foundation.
- Seamless Install
- Gutter Guards
- Downspout Systems
03 · The Method
Same crew,
every step.
- i.
On-site survey
Eric or Adam walks the property. Photographs, measurements, condition notes. We bring the findings back in writing before talking numbers.
- ii.
Written estimate
Itemized, plain-language, no pressure. We document everything so you know exactly what the project involves and what it costs.
- iii.
Our crew, our name
Same crew from day one to punch list. No subcontracted labor, no day-workers borrowed from down the road. The Ernst name goes on every project.
- iv.
Warranty + follow-up
We register your manufacturer warranty and stand behind the work. After 35 years, we still pick up the phone. That is how a family business grows.
“
Eric and Adam came out the same week. The estimate was clear, the crew showed up on time, and they did exactly what they said they would. After 35 years, that kind of reliability is hard to find.
A Watertown Homeowner
Carver County, Minnesota
04 · Territory
Twin Cities metro.
Western suburbs home.
Headquartered in Watertown. Crews across the Twin Cities metro, from Minneapolis and St. Paul to every western suburb in Carver County. Over 35 years serving Minnesota homeowners.
Home Office
Watertown
Headquarters
44.9636° N · 93.8468° W
(952) 657-1053Metro Crew
Minneapolis
Hennepin County
44.9778° N · 93.2650° W
(952) 657-1053East Metro
St. Paul
Ramsey County
44.9537° N · 93.0900° W
(952) 657-1053West Crew
Carver County
Western Suburbs
44.8208° N · 93.7844° W
(952) 657-1053Siding Specialists
Vinyl. Steel. Cedar.
Custom bent onsite.
Allied handles every siding system on the market. Insulated options for Minnesota's extreme winters, custom-bent metals for lineals, window wraps, and crown moldings. Three to five day install on a typical home re-side.
Vinyl & Aluminum
Steel & Cedar
Insulated Systems
Soffit & Fascia
Window Wraps
Crown Moldings
3–5
Day typical re-side
Multi-story walkoutsYes
Commercial buildingsYes
Custom metals onsiteYes
Get Started
Ready to talk?
Call, email, or stop by the Watertown office. Eric or Adam will walk the property, write up a clear estimate, and give you an honest opinion. No pressure, no upsells.
MN License #BC630424BBB A+ Since 20145,000+ ProjectsFamily-Owned Since 1990