HarmonyBuilder - Quality Construction in Harmony, MN

Our Construction Services

We specialize in high-quality construction services tailored to your specific needs.

Residential New Construction

Custom home building from foundation to roof with quality craftsmanship and attention to detail for your dream home.

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Home Additions

Expand your living space with beautifully designed and expertly constructed home additions from foundation to roof.

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Residential Renovation

Comprehensive renovation services to transform your existing home with modern updates and quality craftsmanship.

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Agricultural Buildings

Custom barns, pole sheds, chicken coops and specialty structures for your farm or property.

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Craftsmanship You Can Trust

At HarmonyBuilder, we take pride in delivering exceptional quality construction services to the Harmony, MN community and surrounding areas. With years of experience in residential and agricultural construction, we've built a reputation for reliability, attention to detail, and superior craftsmanship.

Our team specializes in residential new construction, renovations, and additions from foundation to roof, bringing expertise and local knowledge to every project we undertake. We understand the unique needs of our community and are committed to providing structures that stand the test of time.

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Why Choose Us

We're committed to excellence in every project we undertake.

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Local Expertise

Deep understanding of Harmony, MN and the specific needs of our local community.

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Quality Craftsmanship

Attention to detail and commitment to excellence in every project we undertake.

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Reliable Service

On-time completion and clear communication throughout your project.

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Competitive Pricing

Fair, transparent pricing with no hidden costs or surprises.

Our Recent Projects

Real projects. Real craftsmanship. Click any photo to enlarge.

Farmhouses & Residential

Custom farmhouses, additions, and full-envelope siding work

Green Farmhouse — Front Carport

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Green Farmhouse — 3-Car Garage

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Farmhouse side view with stone chimney and porch

Stone Chimney & Wrap Porch

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Back Corner & Yard View

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Grey house siding with Pella window and grill

Siding & Pella Window Detail

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Barndominiums

From red-barn exterior to vaulted great-room interiors — barn living, done right

Modern Red Barnhouse

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Red barn exterior during scaffolding phase

Red Barn — Scaffolding Phase

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Barnhouse kitchen island with vaulted ceiling

Vaulted Kitchen & Island

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Barnhouse living room with blue sectional and woodstove

Living Room & Woodstove

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Living room with red chairs facing pasture window

Red Chairs & Pasture View

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Barnhouse dining hall with carved panels and stairs

Dining Hall & Carved Panels

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Bed nook with built-in shelves and orange throw

Bed Nook & Built-Ins

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Great Room & Mezzanine

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Roofing

Tear-off to finish — synthetic underlayment, ridge vents, valley flashing, gutter replacement

Green shingle roof with yellow leaves and valley

Green Shingle & Valley Flashing

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Roof tear-off with shingles removed and decking exposed

Tear-Off & Decking Exposed

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Gold Synthetic Underlayment

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Rusted gutter close-up before replacement

Gutter Failure — Before

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Roof & Gutter Inspection

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Framing & Structure

Lumber-in-hand craftsmanship — from stair openings to wall cuts

Framing Lumber On-Site

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Basement Stair Opening

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Exterior Window Cut

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Insulation & Weatherization

Knauf fiberglass, cavity fills, ceiling loft installs — building envelopes sealed tight

Knauf insulation in loft with floor and windows

Loft Insulation — Knauf

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Knauf fiberglass insulation batts in wall cavity

Knauf Wall Cavity Fill

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Ceiling insulation install with blue ladders on jobsite

Ceiling Install In-Progress

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Decks & Additions

Composite decking, black-railing stairs, over-driveway framing

Composite Decking Installed

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Deck framing over propane tank and driveway

Deck Framing Over Driveway

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Deck Stairs & Black Railings

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Kitchen Remodel — Demo Phase

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Commercial

Downtown storefront work — scissor-lift facade jobs, retail-front repairs

Downtown storefront with green and red scissor lifts on facade

Storefront Facade — Lifts Deployed

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Downtown storefront facade job alternate angle

Storefront Job — Angle Two

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Winter Is Coming · August Bid Discount

Every Watt You Don't Seal In August Is a Dollar You Burn In January.

Radiant heat loss is invisible — until the propane bill lands. HarmonyBuilder installs high-performance Mylar-based reflective insulation that stops it cold. Lock your project in August and get our best pricing of the year before the winter-prep rush hits.

95–99%

Radiant heat reflected — not absorbed, not re-radiated

3-in-1

Thermal barrier + vapor barrier + sound barrier in one install

Class A

Fire-rated. Non-toxic. Fiberglass-free. Nylon-scrim reinforced.

USA

American-made reflective barrier — proven product line, decades in service

Where We Install It

Residential Attics, cathedral ceilings, crawlspaces, basement rim joists, new-construction envelopes, room additions

Agricultural Pole barns, machine sheds, shop buildings, livestock structures, workshops

Specialty Grow rooms, garages converted to living space, workshops with year-round temp control

Retrofits Existing structures losing heat — we assess, seal, and stop the bleed

Insulation install — loft floor and windows

Basement framing ready for envelope seal

Lock Your August Bid — Save Before the Winter Rush

Every insulation bid signed in August ships at our best pricing of the year. Beat the September call-volume spike. Beat the January regret.

Get My August Bid Now →

HarmonyBuilder proudly installs quality American-made reflective barrier products. We stand behind the material and the workmanship — every install, every season.

What Our Clients Say

Don't just take our word for it - hear from our satisfied customers.

HarmonyBuilder built our dream home from foundation to roof and the quality of work was exceptional. They were professional, on time, and the finished product exceeded our expectations.

John D.

New Home Construction

★★★★★

We needed a home addition built quickly for our growing family. The team at HarmonyBuilder delivered on time and on budget. Couldn't be happier with the results!

Sarah M.

Home Addition Project

★★★★★

The renovation work they did on our home was amazing. They transformed our outdated space into something modern and beautiful while staying within our budget.

Michael T.

Home Renovation Project

★★★★★

Quality Construction in Harmony, MN

Our Construction Services

Residential New Construction

Home Additions

Residential Renovation

Agricultural Buildings

Craftsmanship You Can Trust

Why Choose Us

Local Expertise

Quality Craftsmanship

Reliable Service

Competitive Pricing

Our Recent Projects

Farmhouses & Residential

Barndominiums

Roofing

Framing & Structure

Insulation & Weatherization

Decks & Additions

Commercial

Every Watt You Don't Seal In August Is a Dollar You Burn In January.

Where We Install It

Lock Your August Bid — Save Before the Winter Rush

What Our Clients Say

John D.

Sarah M.

Michael T.

Get Your Project Started