Scottsdale · Paradise Valley · Arcadia

Certainty is the real luxury

Proper Build Group was founded by an owner who spent eight years renovating for his own account and supplying cabinetry and flooring to everyone else's. The same two failures wrecked project after project: schedules nobody managed, scopes nobody wrote down. We built this company to close both gaps.

How we work

ScopeDefined in writing before we start
PricingItemized trade by trade
ScheduleBuilt in preconstruction, tracked weekly
UpdatesRegular written progress reports
OversightDedicated project leadership
LicenseAZ ROC 359997 · Bonded & insured
Years building in the Valley8
Residential and commercial projects completed100+

The argument

The difference is in how the job gets run.

Every builder in Scottsdale has a portfolio of nice kitchens. Far fewer can tell you what the budget was built on, how the schedule held together, or what happened the week something went wrong. We have been the owner on many of our hundred-plus projects, so we build the way we wanted our own contractors to build.

01 / Price

Priced trade by trade

Every trade bid separately and shown to you as a line item. Nothing estimated per square foot, nothing hidden inside "general construction."

02 / Schedule

A schedule we actively manage

We build a milestone schedule during preconstruction and track it weekly as the job runs. When something shifts, you hear it from us first.

03 / Site

Leadership that isn't spread thin

We limit how many projects run at once so the person leading your build isn't stretched across the Valley. You'll know who they are and how to reach them directly.

04 / Materials

Bought at wholesale

We came out of the cabinetry and flooring business and kept the wholesale access. That helps on two categories that move a remodel budget more than most.

What we build

A short list of work, done all the way through.

We don't chase every job in the Valley. We take renovations where the drawings are real, the finish level is high, and the owner wants one company accountable from demolition to punch list.

Whole-home

Gut renovation

Down to studs and slab. New structure, mechanical, electrical, plumbing, envelope, and finish, sequenced so the house comes back better than the day it was framed.

  • Structural modification and re-framing
  • Full MEP replacement
  • Windows, doors, roofing, stucco
Rooms that matter

Kitchens & primary suites

The two rooms people actually live in. Custom cabinetry, stone selected at the slab yard with you, and millwork detailed before a single cabinet is ordered.

  • Shop-drawn custom cabinetry
  • Slab selection and layout
  • Appliance and plumbing coordination
More house

Additions & casitas

Square footage added to a home you already like. We handle survey, engineering, permitting, and the HOA submittals that will eat six months if nobody owns them.

  • Design and engineering coordination
  • City permitting and HOA review
  • Guest casitas, garages, outdoor living

Before you commit

You get the whole picture before you sign anything.

Most remodel horror stories start with a one-page bid and a handshake. Ours starts with a preconstruction package you could hand to any other builder in town.

Start a project

  • Measured existing conditions and a written scope narrative
  • Line-item budget: every trade priced, nothing bundled
  • A milestone schedule for the project
  • An allowance sheet showing where selections affect the budget
  • The subcontractors we intend to use, named
  • A draw schedule tied to completed work

How it goes

Three phases. No surprises in any of them.

The full breakdown, including how we price work and what we won't take on, is on the process page.

Phase 01
2–5 weeks

Preconstruction

We walk the house, review the drawings against existing conditions, price the trades, and build the schedule. You review the budget and the schedule before demolition starts.

  • Site walk and existing-conditions review
  • Trade pricing and line-item budget
  • Permit and HOA submittals

Phase 02
The build

Construction

A dedicated project lead runs your house. You get regular written updates with photos, the current schedule, and anything that needs a decision from you.

  • Long-lead materials ordered at contract
  • Change orders priced and approved in writing
  • Daily site cleanup and neighbor management

Phase 03
Handover

Closeout

We work the punch list to completion at closeout. You leave with the documents you'll want in five years when something needs service.

  • Owner walkthrough and punch list
  • Warranties, manuals, and as-built documents
  • Workmanship warranty as set out in your contract
Every month a project runs long is a month of interest, taxes, insurance, and utilities charged against a fixed date. Schedule isn't an operational detail. It's a line item.

Colby McMahon — Founder

We learned that on our own projects, where a slipped schedule came out of our own pocket. You get the same discipline on your house.

Ask any builder for references from the projects that got difficult, not just the ones that went smoothly. We're comfortable with that conversation.

Next step

Tell us about the house.

Five questions, about two minutes. If it looks like a fit, we'll come walk the property and give you an honest read on what it will take.

Start a project

The record

Eleven recent projects, before and after.

Renovation size, how long each one took, and what the house looked like on both ends. Most finished inside seven months. The shortest was four.

01

86th Street

Scottsdale · 85251

Renovation$230,000
Duration7 months
CompletedJul 2026
86th Street before renovation
Before
86th Street after renovation
After

Kitchen

02

Canyon View Road

DC Ranch, Scottsdale · 2,627 sf

Renovation$350,000
Duration7 months
CompletedJul 2026
Canyon View Road before renovation
Before
Canyon View Road after renovation
After

Great room and kitchen

03

Lincoln Drive

Arcadia, Phoenix · 85018

Renovation$300,000
Duration7 months
CompletedMar 2026
Lincoln Drive before renovation
Before
Lincoln Drive after renovation
After

Kitchen

04

Sheridan Street

Scottsdale · 85257

Renovation$240,000
Duration5 months
CompletedDec 2025
Sheridan Street before renovation
Before
Sheridan Street after renovation
After

Primary bath, converted from a workshop

05

Windrose Drive

Scottsdale Mountain · 4,474 sf

Renovation$500,000
Duration9 months
CompletedOct 2025
Windrose Drive before renovation
Before
Windrose Drive after renovation
After

Kitchen

06

Sahuaro Drive

Phoenix · 1,738 sf

Renovation$180,000
Duration4 months
CompletedMay 2025
Sahuaro Drive before renovation
Before
Sahuaro Drive after renovation
After

Kitchen

07

Catalina Drive

Phoenix · 85014

Renovation$250,000
Duration6 months
CompletedApr 2025
Catalina Drive before renovation
Before
Catalina Drive after renovation
After

Kitchen

08

109th Street

McDowell Mountain Ranch · 3,759 sf

Renovation$275,000
Duration4 months
CompletedOct 2023
109th Street before renovation
Before
109th Street after renovation
After

Great room and kitchen

09

Canterbury

Moon Valley, Phoenix

Renovation$220,000
Duration9 months
CompletedMay 2022
Canterbury before renovation
Before
Canterbury after renovation
After

Kitchen and great room

10

Highlands Drive

Paradise Valley

Renovation$250,000
Duration4 months
CompletedJul 2021
Highlands Drive completed
Completed

Great room

11

Dixileta Drive

Scottsdale · 85266

Renovation$350,000
Duration7 months
CompletedSep 2020
Dixileta Drive before renovation
Before
Dixileta Drive after renovation
After

Kitchen

Renovation figures are construction cost on each project. Durations are actual, measured from start of work to completion.

On site now

Currently building.

Two active builds. Ask and we will arrange a walkthrough of either one while the work is still open.

Desert Mountain, Scottsdale

Sundance Trail

A hillside home taken back to structure. Great room framing reworked to open the view corridor, full mechanical, electrical, and plumbing replacement, new kitchen and primary suite, refinished exterior.

  • ScopeFull renovation
  • DeliveryFixed price
  • StatusIn progress

Scottsdale

80th Place

Interior renovation and reconfiguration. Walls relocated to square up the plan, new kitchen with custom cabinetry, every bath rebuilt, new flooring, lighting, and electrical throughout.

  • ScopeInterior renovation
  • DeliveryFixed price
  • StatusIn progress

References

Talk to the owners.

We're glad to put you in touch with recent clients, including the ones whose projects hit a problem along the way. Ask them how it got handled.

Next step

Tell us about the house.

Five questions, about two minutes. If it looks like a fit, we'll come walk the property.

Start a project

Phase 01
2–5 weeks

Preconstruction

Nothing gets demolished on a guess. We measure what's there, review the drawings against the existing conditions, and put the trades out for real pricing. If the design and the budget don't agree, you find that out here, not in month four.

  • Site walk and measured existing conditions
  • Permit history pulled, structural and mechanical condition confirmed
  • Drawing review with your architect and designer
  • Trade-by-trade pricing, built line by line, never per square foot
  • Allowance sheet for selections
  • Permit and HOA submittals filed

Phase 02
The build

Construction

A dedicated project lead runs your house, not five others at the same time. You get regular written reports: what got done, what's next, where the schedule stands, and any decision we need from you.

  • A dedicated project lead on the job
  • Long-lead materials ordered at contract
  • Regular written progress reports with photos
  • Schedule tracked against milestones
  • Change orders priced and approved in writing
  • Daily cleanup and neighbor communication

Phase 03
Handover

Closeout

We work the punch list to completion before we call the job done. It does not stay open for months. You leave with the paperwork you'll want in five years when a valve fails or a warranty question comes up.

  • Owner walkthrough and written punch list
  • Punch list worked to completion at closeout
  • Lien waivers from every trade
  • Warranties, manuals, and as-built documents
  • Workmanship warranty as set out in your contract
  • Systems orientation walkthrough

Money

How we price work.

Two structures, chosen by what the drawings can support. We'll tell you which one your project should be on, and why.

Fixed price

Scope is defined

Complete drawings and selections. A single contract price, with the estimating risk on us. Most of our work runs this way.

Cost plus, with a cap

Scope is still moving

Open-book invoices, a fixed fee, and a maximum. You see the subcontractor invoices and receipts, and savings under the cap are returned to you on the terms set out in the contract.

Speed

How we protect the schedule.

We spent eight years building for our own account, where every extra month came straight out of our own return. That taught us to treat the schedule as a cost, not a courtesy.

  • Nothing waits on a material we could have ordered in preconstruction
  • Trades sequenced so nobody waits on the trade before them
  • Crews that work our jobs regularly and know how we run them
  • Written accountability against the milestone schedule

Straight answers

What we don't do.

  • Start work without a permit a project requires
  • Bid off a napkin sketch and call it a budget
  • Take a job that needs a superintendent we don't have available
  • Run change orders verbally and reconcile at the end
  • Bill for work that isn't in the ground

If your project needs something on this list to pencil, we're the wrong builder, and we'll tell you that in the first meeting instead of the fourth month.

Next step

Tell us about the house.

Five questions, about two minutes. If it looks like a fit, we'll come walk the property.

Start a project

Founder

Colby McMahon

I earned my real estate license at 19 and spent my first years on luxury listings in Scottsdale, learning how high-end property is priced and who buys it. At 20 I bought my first property to renovate and resell. It worked, and I kept going.

Eight years later I've completed more than a hundred projects, over eighty of them residential, ranging from cosmetic remodels to full structural renovations with major additions. Along the way I assembled and sold a portfolio of nearly thirty single-family and small multifamily units, and built and exited two operating companies, including a cabinet and flooring business I grew to ten employees.

All of that was spent as the owner writing the checks. I know what a vague invoice feels like, and what it costs to hear about a delay after it already happened. Proper Build Group is built so the people who hire us don't find out the same way.

  • RoleFounder, Proper Build Group LLC
  • LicensesAZ General Contractor · AZ Real Estate
  • Projects completed100+
  • BasedScottsdale, Arizona

The team

Who's on your house.

Small on purpose. Every project has a named person responsible for it, and you'll have their phone number.

Field

Jake

Construction delivery and field operations. Jake owns what happens on site: sequencing, trade coordination, quality, and the schedule you were promised.

Office

Project coordination

Submittals, selections, permits, inspections, and the paperwork trail. The part of a remodel that decides whether it finishes on time.

Trades

The same crews, constantly

Our subcontractors work our projects day in and day out, not once a season. That volume earns preferential pricing, and preferential scheduling when you need a trade back on site next week. The second is worth more to you than the first.

The advantage

We buy like an owner, not a contractor.

  • Wholesale access on cabinetry and flooring, kept from the business we built and sold
  • Long-lead materials ordered at contract, not when the trade shows up asking for them
  • Trades sequenced tightly, because we've paid the carry on a slipped schedule ourselves
  • Budgets built line by line, never estimated per square foot
  • Weekly reporting, because that's how we ran our own capital

Credentials & coverage

The boring things that matter.

Verify any of it. The Arizona Registrar of Contractors publishes our license status, complaint history, and bond. Look it up before you sign with anyone.

  • EntityProper Build Group LLC
  • AZ ROC license359997
  • BondedYes
  • General liabilityCertificate on request
  • Workers' compCertificate on request
  • WarrantyPer contract terms
  • Office6232 W Bell Rd, Ste 101, Glendale

Where we build

Scottsdale · Paradise Valley · Arcadia · North Scottsdale · DC Ranch · Silverleaf · Desert Mountain · Cave Creek · Carefree

Next step

Tell us about the house.

Five questions, about two minutes. If it looks like a fit, we'll come walk the property.

Start a project

What happens next

No sales sequence.

  • We get back to you quickly, usually within a business day
  • A 20-minute call to understand the scope
  • A walkthrough at the property
  • An honest read on budget and timeline before anyone signs anything

Prefer to talk first?
(802) 999-1094
hello@properbuildgroup.com

What are you planning?

Choose everything that applies.

Where's the property?

We build across the northeast Valley.

What's the budget?

A range is fine. This tells us whether the scope and the number agree.

When would you start?

We schedule preconstruction a few weeks out.

How do we reach you?

Name and email are all we need to get back to you.

Look it over.

Send this and we'll be in touch shortly.