How Much Does It Cost to Replace Siding in Portland, ME?

Replacing siding in Portland runs roughly $10,000 for repairing or re-cladding a single elevation to $100,000 and beyond for a full replacement with trim, insulation and repair work on a large or complicated house.

Use these to know whether the work fits your budget. They are averages drawn from hundreds of quotes, and no two houses land in the same place.

I match homeowners with vetted siding contractors in Portland, and I cover siding across Maine. Three quotes, free, no obligation to hire any of them.

What does replacing siding cost here?

The jump between rows two and three is material. The jump between rows three and four is everything that happens once the old cladding is off.

Should you ever side over the old siding?

This is the position my siding contractors hold and it is the most important thing on this page.

Cladding installed over existing siding hides the one thing you are paying to find out: the condition of what is underneath. Sheathing, framing, water damage, rot around windows, failed flashing.

Going over it means none of that gets seen, none of it gets fixed, and all of it keeps happening quietly behind a new surface.

It also makes the new work worse. You cannot properly integrate a weather barrier, flash a window or detail a corner over an uneven layer of old material. The details that keep water out are exactly the ones that get compromised.

And it is the reason for a suspiciously low quote. If one number is dramatically below the others, the first question is whether that contractor intends to tear off. Ask it directly.

There is one narrow exception in this trade, and it involves cladding over sound asbestos-cement siding, where removal carries its own handling requirements and leaving it undisturbed can be the correct call. That is a specific case decided by a specialist rather than a general shortcut, and it is not a reason to go over ordinary old siding.

What does the crew find underneath?

This is where a siding budget moves, and it is why the fourth row of the table exists.

Rotten sheathing, usually at the bottom of walls, under windows and anywhere a gutter has been overflowing for years.

Failed or absent flashing at windows and doors, which on older houses is frequently the actual cause of everything else.

Framing damage where water has been getting in long enough to reach it.

No weather barrier at all, which is normal on houses of a certain age because the material did not exist when they were built.

Insulation that is missing, settled or wet. With the walls open this is the cheapest opportunity you will ever get to address it, and adding exterior insulation while the cladding is off is a genuinely good use of money.

Pest damage, which is more common than people expect on rural and wooded lots.

A good contractor prices an allowance for repair and tells you the rate at which additional work will be charged. A contractor who quotes as though nothing will be found has not done many of these.

How does Portland's housing stock change it?

Peninsula houses are the hard version. The stock is 1870 to 1920 and it is three storeys more often than not. That means staging rather than ladders, and staging is a real line item that scales with height.

Access is a genuine cost here. Narrow lots with almost no setback, nowhere to put a skip and nowhere to stack material. A triple-decker with no side yard is a different job from the same building with a driveway, and the quote should say so.

Lead-safe work practice applies to essentially every pre-1978 house, and siding work disturbs exterior paint by definition. This is a federal requirement with a real credential attached, which makes it one of the few things in this trade you can genuinely verify. Ask to see it.

Historic district review covers exterior work visible from a public way, and new siding is about as visible as work gets. Roughly a dozen local districts exist in this city. If your address is inside one, the material and frequently the profile need approval before anything is ordered, and that goes ahead of the whole project.

Off the peninsula, in Deering and North Deering, postwar houses with conventional framing, two storeys at most and a driveway to work from. Those are ordinary siding jobs at ordinary siding prices.

What does the jump in material buy?

Vinyl is the second row of the table and it is a legitimate choice done properly. Done properly means the right thickness, correct fastening that lets it move, and real trim details rather than the cheapest possible corner posts.

Fiber cement and engineered wood are the third row. They cost more, they look considerably better on an older house, and they hold paint. They are also heavier and slower to install, which is where most of the price difference actually sits.

Cedar and other wood belong on some Portland houses and nowhere else. On a peninsula building inside a district it may be the only approvable answer.

The material decision is easy to price once you have decided. The tear-off and repair underneath is what actually determines your number.

What is not in the number?

• Permits and their fees, which are the city's.
• Repair work beyond whatever allowance the quote carries.
• Windows, if you are replacing them. Doing windows and siding together is genuinely efficient and it is a bigger project.
• Exterior insulation, which is the best-value addition available while the walls are open and is not automatically included.
• Staging on a three-storey building, if the quote priced ladders.
• Gutters, and fixing whatever the gutters were doing to the wall in the first place.
• Lead-safe containment and disposal, on a pre-1978 house.

What about permits and your contract?

Ask Portland Permitting and Inspections what your project requires and whether your address falls inside a historic district. Both answers come before you order material.

Get it in writing. Maine requires a written contract above $3,000 in labor and materials, which covers essentially every project on this page. The Maine Attorney General publishes a free model home construction contract. Use it, or use something at least as thorough.

A statewide fact for your comparisons: Maine does not license general contractors or builders. Only plumbers and electricians hold state licenses, so no siding contractor here carries a state credential you can look up. Insurance, references, financial stability and finished work are checkable, and my ten-step process checks all four before I give you a name.

Where should you save, and where not?

Save by doing one elevation if only one has failed. The first row of that table exists for a reason, and a house does not always need everything done at once.

Save on material rather than on preparation. Vinyl over sound, properly repaired, properly wrapped walls beats fiber cement over rot every time.

Save by combining with windows if both are due. One set of staging, one mobilisation, one disruption.

Do not save by going over the old siding. Everything above.

Do not save on the weather barrier or the flashing. They are a small share of the cost and they are the entire point of the exercise.

Do not save on the repair allowance. A quote with no allowance is not cheaper, it is just less honest about what happens in week two.

What does a worked example look like?

A 1,600 square foot cape in North Deering. Two storeys, driveway, existing vinyl coming off, sound sheathing, replaced with new vinyl and proper trim details.

That is a second-row job and a straightforward one, in the $22,000 to $45,000 band, at the lower half if the walls are sound.

Take the same square footage on a three-storey West End triple-decker. Staging instead of ladders, no parking, lead-safe practice throughout, a historic district approval before you start, plaster-era framing, and rot under two of the windows once you are in.

Same amount of wall. Third or fourth row of the table.

Frequently asked questions

Can I just put new siding over the old? You should not. It hides the sheathing and framing you are paying to inspect, and it compromises the flashing and weather barrier details that keep water out.

Why is one quote so much lower than the others? Usually because it does not include tear-off, or it carries no repair allowance. Ask both questions directly and most of the spread explains itself.

Is vinyl a bad choice? No. Vinyl installed properly with real trim details is a legitimate and long-lasting exterior. Vinyl installed cheaply over unaddressed problems is the thing to avoid.

Should I add insulation while the siding is off? It is the best-value moment you will ever get for it, and on Portland's older stock it changes how the house feels. It is not automatically in a quote, so ask.

Do I need approval for new siding? Inside a historic district, yes, for anything visible from a public way. Ask the city about your address before ordering material.

How long will my house be wrapped in plastic? Two to seven weeks depending on the row of the table, the height of the building and how much repair turns up.

How do you price your own siding job?

Nobody can price siding without walking the building, because the price is decided by what is behind the old cladding rather than by what goes on top of it.

Tell me roughly the age of the house, how many storeys, and whether there is a driveway to work from. Those three answers narrow it fast.

More on the work itself: siding contractors in Portland, ME · every Portland trade on my list

Before you sign: what replacing windows runs here · the warning signs worth walking away from