Stunning, Custom Home Additions in Lake Chelan, WA
Trusted House Builders focused on customer satisfaction for over 20 years!
At Apex, we’ve earned a reputation for integrity and excellent work – and when you see our completed projects, there’s no question why. We value accuracy over speed, method over results, and – most importantly – quality over price. When you choose us to complete your home addition, you can rest assured that we will treat your house with the care, focus, and attention it deserves.


REVIEWS
Polly Colgrove
4/24/2025
I highly recommend APEX Building Services for home remodeling. They added a second story over my garage from A to Z. Cheryl Nelson began by listening to my needs and drawing up plans for a space that is practical, comfortable and beautiful. Wes Nelson took care of the permitting process. He is in charge of the building side of the business. Everyone I dealt with at Apex knew what they were doing. They worked very hard, with heavy loads, under … continue reading
Jason Cambridge
12/10/2024
Apex Building Services delivered a high-quality outdoor renovation for our vacation home in Chelan, including a deck, patio, hardwood ceiling with integrated lighting, sauna, hot tub, and cold plunge. The project was completed on schedule and within budget, with excellent communication throughout. Their team demonstrated strong attention to detail and a clear commitment to craftsmanship. We were so impressed with the results that we’ve already … continue reading
Nick Bowler
10/6/2023
The design and layout of our remodel turned out just as, it was planned. Thank you Apex and Subcontractors.
The Apex Difference
Apex is founded on an understanding that integrity and quality craftsmanship are fundamental to building relationships and creating a business that doesn’t only serve its owners, but also serves its employees, subcontractors, and customers. When you hire us, our team will treat you and your home with the highest degree of professionalism, while they tend to your home with the care they would their own.

A Brand New Home at Your Current Location
If you love where you live (and as locals of Central Washington, we know that feeling), but your family is expanding or you’re just ready for a fresh space, a home addition can be a great choice! With a home addition by Apex, you get to combine the fresh feeling of a new home with the comfortability of staying exactly where you are – no moving vans required.
Leave Your Home Remodel to the Pros!

The Process
At Apex, we have a design-build process. This means that all of the key aspects of your project are handled by a single team – from design, to building, to warranty. This approach ensures that the vision you start with becomes a reality in the final redesign of your home addition.
As we partner with you to craft your custom space, you will enjoy the stability of having only one main point of contact – your project manager, so you will always know about any changes in a timely manner.
Step 1: Let's Talk
During this phase, we’ll get acquainted to see if we are a fit for each other. Since you are reading this, that process is already underway! We’ll do a deep dive into your vision and make sure that we “get it.”
We’ll talk about your budget in relation to your vision, consider possible options and explain how financing or payments to us work. We’ll talk schedule, your role in the project and what you can expect from us. We’ll be unfailingly honest– telling you what will be fun– and what won’t. And we’ll leave you with a complete guidance kit full of useful information to help you understand not only who we are but also how projects like yours works.
Step 2: The Design Agreement
Prior to entering into a Construction Agreement together, there will be pre-construction processes for which there will be fees. These fees are separate from the construction contract. These pre-construction processes will be handled with what is called a Professional Services Agreement or PSA. Your PSA will usually include costs for doing a detailed estimate that assures you a quality, completed project at a guaranteed price. The PSA will usually cover design services and sometimes some demolition and discovery work if required to create a guaranteed project price for you. The PSA does not obligate you to enter into a Construction Agreement with us and you own the results of the design work covered by the PSA.
Step 3: Project Development
Step 4: The Construction Agreement
We will now have all the information to provide a guaranteed price for your project, you will have signed off on the design and production plan. You’ve met your project manager and know who will be doing what to whom.
We will provide an Agreement for our mutual signatures. We will go over and explain every detail of our straightforward Agreement.
Step 5: Project Management
Step 6: In-Process Changes
No matter how carefully we plan your project together you will probably want to make some changes along the way. We are prepared to cheerfully accommodate any changes you want to make. Our Agreement will explain how costs associated with your changes will be handled.
Step 7: Project Completion
Step 8: Enjoy Your Home!

The Apex Building Services Difference




Not everyone wants to work harder. We’re not everyone.
When you choose a Certified Home Builder* you’re partnering with a professional who has committed to performing at the highest level possible in our industry.
Make certain your builder measures up.
* A contractor registered in the State of Washington is not a Certified Builder. Certified Builder is an elective designation that offers you a more highly accredited building professional.