Home Remodeling in Los Altos & Los Altos Hills
Thoughtful remodeling for Los Altos homes, integrating architecture, interiors, and construction into one cohesive process.
36+ years of experience
A legacy of design, craftmanship, and trust
Rigorous Planning
Detailed preconstruction & budgeting reduce surprises during construction
Transparent Communication
Clear schedules, consistent updates, and budget visibility
Integrated Project Delivery
Our architects and construction team collaborate from day one


Remodeling in Los Altos & Los Altos Hills
Since 1990, we have been the remodeling partner of choice for discerning homeowners across California’s Bay Area, bringing architects, interior designers, and builders together under one roof to deliver results that honor what your home already is, and build on it.
As a remodeling contractor in Los Altos, we’ve seen every type of house: Eichlers, ranches, California cottages, and hillside moderns. We know what works and what fails in this microclimate. You get luxury home remodeling in Los Altos without the luxury markup because we don’t outsource.
How We Remodel Homes in Los Altos & Los Altos Hills
Whole Home Remodels
We take on whole home remodeling in Los Altos, reconfiguring layouts and redesigning interiors so every space works as a coherent whole.
Design-Led Additions & Expansions
We design and build additions that are structurally and visually integrated with your existing home. More living space, planned by architects, built to last.
High-End Kitchen & Bath Remodels
We remodel kitchens and bathrooms with full architectural oversight. Layout, plumbing, finishes, and fixtures planned together so everything works as intended.

Built on Legacy. Designed for You. The Timeline Difference.
What sets Timeline apart is not any single capability. It is the fact that all capabilities exist in one place and answer to a single standard of quality.
Architecture - We Design It
Thoughtful architecture that transforms your vision into purposeful, enduring spaces of lasting beauty and value
Interior Design - We Style It
Interiors designed as a natural extension of the architecture, balancing beauty, function, and the way you actually live
Construction - We Build It
Expert craftsmanship and disciplined project management from groundbreaking to completion
Our Proven Process
Since 1990, delivering transformative remodels and custom homes with exceptional cohesion, quality, and collaboration.
Discovery
Every successful project begins with understanding. We take the time to learn your goals, lifestyle, vision, and priorities.
Feasibility & Budget
With the vision established, we explore possibilities, evaluate the property, project scope, and budget, and define a clear path forward so you know what to expect from the outset.
Design Development & Planning
With a strong foundation in place, we handle permits, finalize selections, and assemble your dedicated build team, setting the stage for a seamless start.
Construction
From the first wall down to the final walkthrough, we bring your design to life with precision and care, keeping you involved throughout the process.
Warranty & Ongoing Care
Our commitment doesn't end at move-in. With a detailed warranty and follow-up care, we ensure your home continues to meet the highest standards.
Featured Projects in Los Altos & Los Altos Hills
Each home we remodel is a private commission, shaped by the people who live in it, and built to last beyond them. These are a few of the projects we are proud to call ours.











Hear It From Our Clients
The most honest measure of our work is what our clients say about it, long after the project is done.
Posted on Google![]()
Sunny EarlyTrustindex verifies that the original source of the review is Google.
My husband and I worked with Timeline to provide some initial insights for the potential remodel of our house in Los Altos. They provided useful design guidance for what a minimal, moderate, and full-scale renovation would look like, in addition to approximate costs for each. Their guidance was practical and well-informed from years of experience in the industry. They were professional, flexible and always listened to our input. Although we weren't able to take the process any further due to our family situation, we gained a lot from our conversations and had fun dreaming about what our little house could be. We highly recommend Timeline Design!Posted on Google![]()
Gene BanmanTrustindex verifies that the original source of the review is Google.
My wife and I had TimeLine Design design and build our custom 5700 sq ft Portola Valley home. From tear down of the old house to move in to the new house was on schedule at 19 months! Unbelievable. I believe this performance was partly due to the fact that they did the architectural design as well as the build, so the normal stresses between architect and builder were not present. The in-house architect was terrific and the home is lovely. The other reason it was on schedule was that Timeline Design takes scheduling very seriously, so much so it is in their name. The other amazing thing about the project was that it was on budget. We had detailed discussions of what we could afford and therefore what could go into the project and what couldn't. We scaled back the ambition of the project and the luxury level of some of the materials up front and then TLD delivered as planned. TLD is an honest and hardworking builder of the highest quality. We love them! How many times have you heard that from a construction company client?Posted on Google![]()
Todd HendersonTrustindex verifies that the original source of the review is Google.
We hired Timeline Design in Saratoga, California for a major remodel of our home. We found mold damage that required us to essentially tear down half our house, pour a new foundation, and rebuild it. It was a long, painful process but the staff at Timeline made it as easy and pleasant as it could possibly be. We are very happy with our "new" home and really enjoyed working with the staff at Timeline. Matthew Harrigan, the owner and president of Timeline, started us off with the design process and provided us multiple estimates so we could choose an option that fit our budget. Matthew was friendly, easy to work with, and showed genuine concern for our situation. For interior design we worked with Kyle Le, who through several sessions showed us multiple options and even took us shopping to pick out tile. He provided a great deal of input and he knows what he's talking about, the house looks great! He did a good job of keeping our budget in mind as well. As our start date got close Timeline provided us with a calendar outlining the expected time to completion. They stayed on schedule throughout the project and finished very close to the date promised, with only a few minor details that needed to be addressed. Their follow-through has been solid, they are completely finished with the job with the exception of our new dishwasher. We're still waiting on it due to supply chain issues, but they're keeping us posted and it's expected soon. Our project manager, Gary Skwarek, was onsite every day, extremely capable, and a joy to work with. Gary handled all the work at the house that the subcontractors didn't, doing a terrific job. I can't say enough good things about Gary. If you choose to work with Timeline, you'd be fortunate to have him assigned to your job. We also worked with several other employees, including Jason Daniels, Joshua Javillonar, Hooman Amanat, and Jason Sanders. They all provided excellent, friendly service. With the exception of a couple issues that were resolved by Timeline, the subcontractors that were on our job were quite efficient and provided quality workmanship and materials. Timeline even came back out and repaired misalignment of our pocket doors a few months after the job ended at no cost to us. In closing, we are very happy we chose Timeline for our project. Their workmanship is excellent, they stayed on schedule, and worked effectively with our budget.Posted on Google![]()
Mike CurtisTrustindex verifies that the original source of the review is Google.
Timeline did an extensive remodel of our Eichler-style house a couple of years ago. They were excellent to work with. They were transparent throughout the process and let us be as hands on as we wanted to be. Their designer took pains to respect the style of the original house while modernizing it. The construction leads were professional and fun to work with. They cared about getting every detail right. They accommodated all our change orders and delivered the project on time and within budget. Highly recommend working with this crew!Posted on Google![]()
Robert ShafferTrustindex verifies that the original source of the review is Google.
Our structural engineering firm has been working with Timeline Design+Build for the past 5 years. Our field inspections of homes under construction reveal a company who is truly dedicated to providing superior craftsmanship with acute attention to detail. Their in house design team is professional and well organized, providing beautiful & harmonious home designs.Posted on Google![]()
robyn daviniTrustindex verifies that the original source of the review is Google.
I have worked with Matthew Harrigan and team for over 7 years. Matthew is not only a fantastic designer of your space, but pulls rabbits out of the hat all the time to keep his clients elated! His team is top notch, from the interior designers, to his architectural staff, office personnel and the guys who are in the field building your dream home. Matthew has developed a base of experts, city and county personnel, who know, when he calls or asks a question, they respect his work and reputation and are eager to help. He is definitely not the cheapest guy out there, but the end result shows why cutting corners does not bring the same value to the home, make the client happy, and he can’t put his name on something he is not proud of. He stands behind his warranties. His whole reason for doing what he does is to have happy, satisfied customers and ALWAYS goes above and beyond to ensure 20 years down the road they are still positive they made the right decision by going with Timeline. In fact, he has so many clients who end up doing one project after the next over the years so clearly they are more than satisfied! I am so confident in his prowess, that he is transforming my sister’s ocean front property into an amazing home. I would not have recommended him to my own sister if I wasn’t completely confident in his ability, follow through and team. One more thing! 98% of his clients (even after 10 or more years) welcome Matthew and new clients to tour their homes. THAT typically doesn’t happen if you aren’t happy with the process and result! Thank you for reading! Robyn
Frequently Asked Questions
We offer a full range of remodeling services, from kitchen and bathroom renovations to whole-home transformations. Our design-build model means architecture, interior design, and construction are all handled by one integrated team.
Most remodeling firms either design or build. We do both — with licensed architects and interior designers on staff. That means your vision is protected from the first drawing to the final build.
Yes. We have extensive experience working in both Los Altos and Los Altos Hills, including homes with hillside considerations, heritage tree ordinances, and estate-level design expectations.
Timelines vary by scope. A kitchen remodel may take 8 to 14 weeks. A whole-home renovation can run 6 to 12 months. We provide a detailed project timeline before work begins, and we hold to it.
Yes. Our team manages all permitting, city approvals, and HOA coordination in Los Altos and Los Altos Hills. We know the local requirements well, and we navigate them on your behalf.
Reach out through our contact page. We’ll schedule an initial conversation to understand your home, your goals, and whether we’re the right fit for each other. There’s no obligation — just an honest conversation.
Ready to Remodel Your Home?
If you’re thinking about what your home could become, this is where it starts. Connect with our team to share your vision and find out what we can build together.
Areas We Serve

Menlo Park

Hillsborough

Burlingame




























































