Paint or Replace Your Siding? A Bellingham Cost Comparison (2026)

A full exterior repaint in Bellingham runs $2.75 to $5.50 per square foot of wall area in 2026, or roughly $4,200 to $9,350 for a whole house. New siding on that same house usually starts around $28,000 and can pass $60,000 depending on the material and how much rot the crew finds once the old boards come off. That gap is wide enough that most homeowners want a clear reason before they choose the expensive door.

The useful answer is that this decision is rarely about looks. It is about whether the siding is still doing its job as a water barrier. Paint is a coating on top of a system. If the system underneath has failed, a repaint buys you two or three years and then the same problem comes back wearing fresh color. This guide covers what each option costs in Whatcom County, how to tell which one your house needs, and what to ask before you sign either bid.

What Each Option Costs in Whatcom County

Numbers first, because the spread between the two options drives most of the decision. These reflect what homeowners in Bellingham, Ferndale, and Lynden are seeing on 2026 bids.

Repaint Pricing for a Bellingham Home

Two coats over prepped siding, trim, soffits, and fascia lands between $4,200 and $9,350 for most homes in the city. A single story rambler in Cornwall Park or Columbia sits at the low end. A two story with steep site access in Edgemoor or on the Sehome hill sits at the top, because ladder and staging time is real labor. Add $385 to $825 for a proper wash before any coating goes on, which is not optional here. Our full breakdown lives in the 2026 exterior painting cost guide.

Siding Replacement Pricing

Installed siding in Whatcom County generally prices per square foot of wall: vinyl around $7 to $12, engineered wood such as LP SmartSide around $11 to $17, and fiber cement such as James Hardie around $13 to $19. On an 1,800 square foot two story house with roughly 2,200 square feet of wall, fiber cement commonly bids in the $30,000 to $45,000 range before extras. Extras are not small. Rotted sheathing, new house wrap, window flashing corrections, and trim packages routinely add $3,000 to $10,000 once the walls are open.

The Middle Path Most Homeowners Miss

Plenty of Bellingham houses do not need all four walls replaced. They need the south and west elevations replaced, the north wall cleaned and primed, and the whole house painted one color afterward. Partial replacement plus a full repaint often lands between $9,000 and $18,000, which sits in the dead zone between the two headline numbers and solves the actual failure. Ask for this as a line item. A siding company will not always offer it, because it is a smaller job for them.

How to Tell Which One Your House Needs

You can do most of this assessment yourself on a dry Saturday with a flashlight and a screwdriver. What you are testing is whether the board is still structurally sound and whether water is getting behind it.

Damage Paint Will Not Fix

Soft or spongy board that gives when you press it, swelling and mushrooming along the bottom edges, delaminated layers on hardboard, and rot at the butt joints all mean the material has taken on water and lost integrity. Paint over that and the moisture already inside pushes the new film off, usually within two wet seasons. The same applies to siding with fungal growth coming through from behind rather than sitting on the surface. Surface moss and mildew clean off, and we cover that in the moss and mildew prep guide. Growth from behind is a different problem.

Damage That Is Only Cosmetic

Chalking, fading, hairline checking in the paint film, and peeling that stops at the primer are coating failures, not siding failures. So is nail head rust bleed and caulk that has pulled away from trim. All of that is normal wear on a Bellingham house at year seven to ten, and all of it is a repaint with proper prep. If the reason you are looking at siding quotes is that the house looks tired, you are almost certainly looking at a paint job. Our guide on why exterior paint peels here walks through how to read the failure pattern.

The Screwdriver Test on South and West Walls

Push a screwdriver tip into the siding at the bottom course, near butt joints, under windows, and anywhere a downspout discharges. Firm resistance is fine. If the tip sinks in with light pressure, mark that spot. Do this on the south and west elevations first. Those walls take the wind driven rain that arrives with a Pineapple Express, and they fail years before the north wall does.

Count the Bad Spots Before You Decide

A rough rule that holds up in the field: under about 10 percent of the wall area showing soft spots is a repair and repaint job. Between 10 and 30 percent is where partial replacement makes sense. Past 30 percent, especially if the soft spots are spread across several elevations rather than clustered under one leaking gutter, replacement usually wins. Rot repair before painting is its own scope, covered in the wood rot repair guide.

Siding Types Around Bellingham and How They Age

What is on your walls narrows the decision quickly, because each material fails in a recognizable way in this climate.

Cedar in Edgemoor, Fairhaven, and the Lettered Streets

Old growth cedar on a 1920s Fairhaven house is often worth saving even when it looks rough, because the replacement material available today is not the same wood. Cedar that has been kept coated will take another repaint at 40, 60, or 90 years old. What kills it is bare exposure through several wet winters and tannin bleed that never got a stain blocking primer. Under the Chuckanut shade, where boards dry slowly, cupping and splitting at the ends is common and individual boards can be swapped rather than replacing the wall.

T1-11 and Hardboard on 1970s and 1980s Homes

This is where most replacement decisions in Bellingham actually happen. T1-11 plywood siding and pressed hardboard products from that era swell at the bottom edge, delaminate at the grooves, and lose their ability to hold a fastener. A house in Silver Beach or Barkley with original hardboard and no new coating since the 1990s is usually a replacement candidate. If the panels are still firm and only the coating has failed, a repaint with a bonding primer and careful edge sealing gets another eight to ten years.

Vinyl in Cordata and the Newer Subdivisions

Vinyl does not rot, so replacement is almost never about water. It is about cracking from cold snaps during a Mount Baker outflow event, warping near barbecues and dryer vents, and color that has gone chalky. Vinyl can be painted with the right acrylic in a color no darker than the original, which we cover in the vinyl siding painting guide. Painting vinyl costs a fraction of replacing it and is usually the right call unless panels are cracked in several places.

Fiber Cement on Homes Built After 2000

Fiber cement is a repaint, not a replacement, in nearly every case. The board itself outlasts the factory finish by decades. What fails is caulk at the butt joints and the coating on cut ends that were never sealed at install. Painting Hardie board correctly keeps the manufacturer warranty intact, and our fiber cement painting guide covers the details.

What Our Weather Does to the Math

Bellingham gets about 36 inches of rain a year at roughly 75 percent average humidity, with the heaviest stretch from October into January. That changes both the timing and the durability side of this decision.

The Dry Window Applies to Both Projects

Exterior paint needs consecutive dry days with overnight temperatures above the product minimum, which realistically means late May through early October here. Siding replacement has a shorter constraint but a sharper one, because the walls are open. No careful crew wants sheathing exposed when a system rolls in off the bay. If you are deciding in August, you have time to repaint this season and time to schedule siding for next spring. Our dry window scheduling guide covers how to book either one.

Moisture Behind the Siding

The reason siding fails early in this county is rarely the paint. It is water that got behind the boards through failed flashing, a missing kickout at the roof to wall junction, or house wrap that was lapped wrong. If a contractor tells you the siding is shot but cannot tell you where the water is coming in, get another opinion. Replacing siding without fixing the entry point buys you a very expensive repeat of the same failure.

Cost Per Year of Service

Run both options on a per year basis. A $7,000 repaint that lasts eight to ten years in this climate costs roughly $700 to $875 a year. A $38,000 fiber cement job that lasts 40 years, with a repaint at year 15 and again at year 30, costs about $1,300 a year all in. Replacement is not automatically the worse deal, but it only pencils out if the siding is actually failing. If it is not, you are paying triple for the same weather protection you already have. Our post on how long exterior paint lasts here has the realistic service life numbers by substrate.

Questions to Ask Before You Sign Either Bid

Both trades will tell you their product is the answer. Make each one show the work.

What a Repaint Bid Should Show

Wash method and dwell time, the specific primer and whether it is spot primed or full priming, caulk product and where it goes, how rot repair is priced if more is found, product and sheen by surface, and number of coats. A bid that says two coats of quality paint with no prep detail is not a bid, it is a number. Our exterior painting service page lists what our own scope covers, and there is more on reading line items in the estimate guide.

What a Siding Bid Should Show

Tear off and disposal, sheathing inspection with a written unit price for replacement, house wrap product and lap detail, window and door flashing including kickouts, trim package, and whether the finish is factory applied or field painted. Ask specifically what happens to the price if 200 square feet of sheathing turns out to be rotten. Get that number in writing before demolition day, not after.

Ask Both to Diagnose, Not Just Quote

The most useful thing you can do is ask each contractor to point at the wall and tell you why the failure happened. A painter who says the previous coat went on over damp siding in October is telling you something specific. A siding rep who cannot explain the water path is selling material. Washing the house first often makes the diagnosis obvious, and our pressure washing service is frequently the first step we take on these evaluations.

If you are somewhere in the middle and not sure which side of the line your house falls on, get an assessment before you get quotes. We walk the walls, do the screwdriver test on every elevation, and tell you plainly whether this is a paint job or not. Sometimes the answer is that we cannot help you and you need a siding contractor. That is a fine outcome and better than a repaint that fails in three years. Request a free estimate and we will take a look.