⭐ 5-Star Rated
✔ BBB A+
✔ Licensed & Insured
✔ Est. 2014
BUILD UP.
NOT OUT.
DOUBLE YOUR SPACE.
Second story additions that double your square footage without sacrificing your yard — fully engineered, permitted, and built by Equinox Builders.
BBB A+ Rated
5-Star Google & Yelp
500+ Projects
Price Never Goes Up
Get Your Second Story Estimate
Get Your Free
Estimate
Estimate
RESPONSE WITHIN 24 HOURS · NO OBLIGATION
⭐ 55+ Five-Star Reviews · BBB A+
100% free, zero obligation
Price never goes up — guaranteed
Licensed, insured & BBB A+ rated
Professional clean after every job
🔒 Free · No Obligation · We Never Share Your Info
Licensed & Insured
BBB A+ Accredited
5-Star Google & Yelp
Best of 2026 BusinessRate
Second Story Specialists
Pro Clean After Every Job
Price Never Goes Up
Family Owned · Redmond WA
Licensed & Insured
BBB A+ Accredited
5-Star Google & Yelp
Best of 2026 BusinessRate
Second Story Specialists
Pro Clean After Every Job
Price Never Goes Up
Family Owned · Redmond WA
2×
Your Square Footage
5.0★
Google Rating
Full
Engineering & Permits
100%
Fixed-Price
🏆
Best of 2026
BusinessRate Award
⭐
5-Star Rated
Google · Yelp · BBB
🛡️
BBB A+ Accredited
Better Business Bureau
🏅
Trex® Pro Certified
Official Deck Contractor
📅
10+ Years
Serving Greater Seattle
2×
More Living Space
Second Story Addition Experts
YOUR YARD STAYS.
YOUR SPACE DOUBLES.
When you're out of room but love your lot, building up is the answer. A second story addition is the most space-efficient way to dramatically expand your home — keeping your outdoor space intact while adding hundreds of square feet above. Equinox Builders handles every aspect, from structural engineering to final finishes.
LY
Liroy Yarimi
Founder & Owner · Redmond, WA
🏗️
Structural Engineering
Full engineering assessment and stamped plans included.
📋
Permits Fully Handled
We manage city permits and all inspections.
💰
Price Never Goes Up
What we quote is what you pay.
🏆
Quality That Lasts
Premium materials, built to code and beyond.
What We Build
SECOND STORY SERVICES
Every second story is custom engineered and designed to match your home perfectly.
Full Second Story
Add a complete second floor over your entire home — dramatically doubling your living space.
Get Estimate →
Partial Second Story
Add a second story over part of your home — a cost-effective way to gain bedrooms and bathrooms.
Get Estimate →
Master Suite Above
Add a luxurious master bedroom suite above the main floor with a private bathroom and walk-in closet.
Get Estimate →
Kids' Bedrooms Level
Dedicated second-floor bedrooms for growing families — private, quiet, and beautifully finished.
Get Estimate →
Structural Engineering
Full load assessment, beam sizing, foundation review — stamped plans from our engineering partners.
Get Estimate →
Full Interior Finish
Flooring, paint, trim, lighting, bathrooms — completely finished to your specifications.
Get Estimate →
10+
Years of Trust
Why Go Up
MAXIMIZE SPACE.
KEEP YOUR LOT.
In Bellevue, lots are precious. Building up — not out — is the smartest way to gain major square footage while keeping every inch of your outdoor space.
🏡
Keep Your Entire Yard
No footprint expansion — your yard, garden, and outdoor space stay completely intact.
📈
Massive Property Value Increase
Second story additions are one of the highest-ROI home investments in the Seattle market.
💰
Cost-Effective Per Square Foot
Adding up is often more affordable per sq ft than a full horizontal addition on restricted lots.
🏗️
Full Structural Engineering Included
We partner with licensed structural engineers — stamped plans, full city compliance.
✨
Seamless Architectural Match
Rooflines, siding, windows — we match your existing home so it looks original.
How It Works
OUR SECOND STORY
PROCESS
01
📞Free Consultation
We assess your home's structure, discuss your vision, and determine feasibility — 100% free.
02
📐Engineering & Design
Structural engineers assess your foundation, we create architectural plans and submit permits.
03
🔨Expert Construction
Our crew works efficiently — framing, roofing, MEP, and full interior finish on schedule.
04
✨Final Inspection
City inspection, final walkthrough — your new second story is ready for your family.
Real Reviews
WHAT HOMEOWNERS
SAY ABOUT US
5.0
★★★★★55+ Google Reviews
K
Kevin Schroedter Lopez
Local Guide · 3 weeks ago
G
"My wife and I were very impressed from start to finish. Liroy and Omer made us feel like every detail mattered. Dima and Yuri were the most skilled tradesmen we've ever had — I would call them artisans. We will definitely be asking Equinox to help with future projects."
Kitchen & Bathroom Remodeling · Bellevue
A
Anirban Basu
19 weeks ago
G
"They were transparent about pricing and made sure the job was done well. Would not hesitate to hire again."
Home Renovations · Redmond
J
Jeannie Nguyen
14 weeks ago
G
"Liroy was very communicative and helpful. The project turned out great and we are very happy with the results."
Home Addition · Bellevue
M
Mandy Geddes
19 weeks ago
G
"Equinox was easy to work with. They listened, communicated, and were quick to respond. We had a great experience."
Second Story · Kirkland
E
Emily Campbell
Local Guide · 19 weeks ago
G
"Omer & Liroy are wonderful, kind and honest people. Home renovation is important to do with people you trust. They were gracious and understanding throughout."
Home Renovation
J
Jensen Ward
18 hours ago
G
"They showed up at all appointed times, did exemplary work and used quality materials. Highly recommended contractor."
General Construction · Sammamish
Our Work
RECENT PROJECTS
2nd Story · Bellevue
2nd Story · Redmond
2nd Story · Sammamish
Master Suite · Kirkland
Full 2nd Floor · Bellevue
2nd Story · Kirkland
Partial 2nd · Bellevue
Service Areas
WE COME TO YOU.
From Redmond to Tacoma — Equinox Builders serves the greater Seattle area within 90 minutes.
📍
Our Office
8201 164th Ave NE, Redmond, WA 98005
⚡ Eastside — Our Backyard
BellevueRedmondKirklandSammamishIssaquahMercer IslandNewcastleMedinaNorth BendSnoqualmieDuvall
🌊 Seattle & North
SeattleWoodinvilleBothellKenmoreShorelineEdmondsLynnwoodEverettMill CreekSnohomish
🏔️ South King County
RentonKentAuburnFederal WayBurienMaple ValleyCovington
🌲 Pierce & Beyond
TacomaPuyallupGig HarborLakewoodBonney Lake
Common Questions
SECOND STORY
FAQ
How long does a second story addition take? ▾
Most second story additions take 5–8 months from permit approval to completion. We manage the entire timeline, including the engineering and permit phases.
How much does a second story addition cost? ▾
Second story additions typically range from $200,000–$500,000+ depending on size and scope. We provide detailed fixed-price quotes with no hidden costs — ever.
Does my foundation need to be reinforced? ▾
It depends on your home's existing structure. Our structural engineering assessment — included in our process — will determine exactly what's needed before we quote.
Can I live at home during second story construction? ▾
In many cases, yes — especially during the early phases. We discuss the best approach for your specific project during the consultation. Some phases may require temporary relocation.
Will the second story match my existing home? ▾
Yes — always. We match your rooflines, siding, windows, and interior finishes. Our goal is for the second story to look like it was always part of the original design.
How do I get started? ▾
Fill out our free estimate form or call 206-971-1133. We'll schedule a free in-home consultation and structural feasibility assessment — no obligation.
Start Here
GET YOUR FREE
SECOND STORY ESTIMATE
Fill out the form and we'll be in touch within 24 hours. No pressure — just honest advice from a local family business.
100% free, zero obligation
Response within 24 hours
Structural engineering assessment
Fixed price — no surprises ever
Permits fully handled by us
Prefer to call?
📞 206-971-1133No Obligation · 100% Free
Request Your
Free Second Story Estimate
Free Second Story Estimate
We respond within 24 hours
⭐ 55+ Five-Star Reviews · BBB A+
★★★★★
55+ Verified Reviews
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PREFER TO TALK? WE LOVE THAT.
Second Story Addition Bellevue WA · Mon–Sat · 8am–6pm