Welcome to Pro-Fit Construction

At Pro-Fit Construction, we take pride in being a family-owned and operated window replacement and installation company with over 30 years of hands-on experience.

Founded by Mark Jacobson and now proudly run alongside his son Justin, our business is built on craftsmanship, trust, and a commitment to doing things the right way.

New Window and Door Sales & Installation/Repair Existing Windows & Doors

When you choose Pro-Fit Construction, you’re working directly with the people who do the job from start to finish—no middlemen, no subcontractors, and no runaround. We believe in accountability, which means we answer only to you, our customer. Every project we take on reflects our dedication to quality work, honest communication, and lasting results.

Whether you’re upgrading your home or improving your property’s efficiency and appearance, you can count on us for personalized service and expert installation backed by decades of experience.

Pro-Fit Construction specializes in various window styles and materials, ensuring we offer the ideal solution to satisfy your needs and preferences. From vinyl to wood, double-hung to casement, we support you through the selection process, ensuring you make the right choice for your home. We guarantee a seamless and snug fit for your windows, maximizing energy savings and minimizing drafts. With our devotion to perfection and a keen eye for detail, hiring Pro-Fit Construction for window installation is a decision you’ll never regret.

No Salespeople, No Subcontractors, No Commissions—Just Us.

No Middlemen. Just Master Craftsmanship.

Pro-fit Construction LLC enjoys a reputation as the best window installation company in western Washington that has successfully handled numerous complex window installation projects. Our unwavering commitment to providing top-tier customer service and unmatched expertise is responsible for making us the best in the business. We are competent and seasoned experts who are talented and driven to provide exceptional outcomes. As your go-to source for window installation services, your comfort and satisfaction are our first objectives. We guarantee to carry out every installation job accurately and effectively from beginning to end.

Family Owned, Owner Operated. Customer Focused.

At Pro-Fit Construction, you talk to the people who do the work.

No middlemen. No Markups.

No Commissions. No Nonsense.

Built by Owners. Backed by Integrity.