Rainier Repair Services LLC
An aging roof with heavy moss growth on a home in Bellevue, WA

The short answer

If your roof is under about 15 years old and the damage is isolated — one leak, a patch of missing shingles — a repair is usually the right call, typically a few hundred dollars in our area. If the roof is at or past its expected lifespan, leaks in more than one spot, or has soft or rotted decking, replacement almost always costs less over the next ten years than repeated patching.

It’s one of the most common questions homeowners ask us: “Do I really need a new roof, or can you just fix it?” It’s a fair question, and an expensive one to get wrong. Here’s how we think it through.

Start with three questions

Before anyone climbs on your roof, the answer usually comes down to three things:

  1. How old is the roof? If it’s within a few years of its expected lifespan, repairs are often just delaying the inevitable.
  2. How widespread is the damage? A few missing shingles after a windstorm is a repair. Damage across multiple slopes is usually a replacement.
  3. Is the roof deck still sound? If water has been getting in for a while, the wood underneath may be rotted, and no amount of new shingles fixes that.

The quick decision table

Your situationUsually the right call
Roof under ~15 years old, one isolated leakRepair
Storm took shingles off one sectionRepair — often insurance-covered
Leaks keep appearing in different spotsReplacement
Roof at or past its expected lifespanReplacement
Soft spots, sagging, or rotted deckingReplacement

Every roof is its own case, but this table matches how the decision goes for most of the homes we inspect.

When a repair makes sense

Repairs are the right call more often than people expect. You’re probably a good candidate if:

  • The roof is relatively young and otherwise in good shape
  • The damage is isolated to one area
  • A storm took off some shingles or damaged a section of flashing
  • There’s a single, locatable leak

We’ve had plenty of customers come to us braced for a replacement quote, only to leave with a repair that saved them thousands. That’s the outcome we want for you when it’s the honest one.

When replacement is the smarter investment

Sometimes patching is throwing good money after bad. Replacement usually wins when:

  • The roof is at or past its expected lifespan
  • Multiple leaks keep appearing in different spots
  • Shingles are widely curled, cracked, or losing granules
  • The deck underneath shows signs of rot or sagging
  • You’re planning to sell and want the value a new roof adds

The danger of waiting too long

The roof pictured above is a good example. From the ground it looked “fine”, but heavy moss had been quietly lifting shingles for years, letting moisture into the structure. What could have been a moss treatment and minor repair a few seasons earlier had become a full replacement.

The takeaway: small problems don’t stay small on a roof. The sooner you have it looked at, the more options you have.

Get an honest assessment

The only way to know for sure is to have someone look at it who isn’t trying to sell you the biggest job. We’ll inspect your roof, show you what we find, and give you a straight recommendation. Request a free quote and we’ll tell you exactly what your roof needs, and what it doesn’t.

Frequently Asked Questions

Is it worth repairing a 20-year-old asphalt roof?

Sometimes, but the math gets worse every year. A 20-year-old 3-tab roof is at the end of its expected life, so money spent patching it rarely buys much time. If it's an architectural shingle roof that's otherwise sound, a targeted repair can still make sense — that's exactly what an honest inspection sorts out.

How much does roof repair cost in the Seattle area?

Minor repairs like a single leak, a run of missing shingles, or failed flashing typically land in the $300–$900 range. Storm damage across a slope or leaks in multiple places can run $1,500–$2,500+, which is when the repair-vs-replace conversation starts for older roofs.

Will homeowners insurance pay for my roof?

Insurance covers sudden, storm-related damage — wind, hail, fallen branches — not gradual wear or old age. If a storm caused the problem, document it and file promptly. We inspect, photograph, and can meet your adjuster on site.

Can you replace just one slope of a roof?

Physically yes, and after localized storm damage it's sometimes the right move. But on an aging roof it usually isn't — the other slopes fail on their own schedule, you pay for setup twice, and the new shingles won't match. We'll tell you honestly which case yours is.