4 min read • Roofing Resources
Facing a roof repair vs replacement decision? The decision of whether to repair or replace a roof depends on three factors: condition of the roof, extent of the damage, and whether the roof repair dollars are a good investment or a waste. If you get it right, you will save your home for decades; if you get it wrong, you can either end up paying for a new roof that still has many years left or you can continue repairing a roof that won’t last. This Northern Virginia guide will arm you with a clear framework to help you make the call with confidence.
Start Here
How to Decide: 3 Questions for Roof Repair vs Replacement
Just to get a single quotation, run your roof through these three questions. They help you identify the correct answer in most circumstances together.
- How old is the roof? Here, asphalt shingle roofs can be expected to last 20-30 years. Whereas, if yours is above 80% of that life, replacement is the better choice.
- What is the extent of the damage? Isolated in one slope or a few shingles? Repair. Distributed over an area? Lean replacement.
- What does the math say? It is often a better long-term investment to replace rather than repair if the repair is more than 33% of the replacement cost.
Lean Repair
Roof Repair: When It Makes Sense
When the roof is fairly new and the issue is small, repair makes sense. Some typical repair cases are:
- A dozen or fewer shingles lost in a storm.
- There was one leak that was found around a chimney or vent.
- Damage in only one section or slope.
- A roof less than 15 years old (no underlying deck problems).
In these instances, a good repair restores protection for a small fraction of replacement cost. Our team is great at roof repair in Northern Virginia that focuses on the repairs that extend the life of your roof for many years. One note of caution: When selecting matching shingles, if you aren’t able to find replacements or if your roof is over 15 years old, even a “simple” repair can be a noticeable contrast to the faded shingles, so think before you choose.
Lean Replacement
Replacement: When It Is the Smarter Investment
The alternative to repair is replacement – when repair would be a postponement of the inevitable. Be on the lookout for these indications:
- Roof is 20+ years old, and is wearing throughout the surface.
- Shingles that are curling or cracking or have a lot of granules missing.
- Several leaks or daylight can be seen in the attic.
- Soft, rotted roof decking or a sagging roofline.
- You’ve already repaired the same roof several times.
If you have a few of these going on at the same time, it’s seldom worth spending money on a new repair. If you want to get an idea of the price of a new roof, visit our roofing cost calculator page or check out our article on estimating the cost of roof replacement.
The Numbers
Costs of Roof Repair vs Replacement
$300–$2,000
Typical Repair
$8,000–$20,000
Full Replacement
33% Rule
Time to Replace
In Northern Virginia, the average cost of a roof repair is a few hundred to a couple thousand dollars, and the average cost of a roof replacement is from $8,000 to $20,000 on a single-family home. It’s not only about the upfront cost — it’s cost per year of protection. $1,500 may stretch a 25 year old roof for another 2 years, or the same amount could go towards a new roof and last for decades. The National Roofing Contractors Association (NRCA) suggests weighing the remaining useful life of the roof against the repair cost before deciding.
Before You Decide
Get an Honest Assessment First
The roof repair vs replacement question can’t be answered from the ground. Decking rot, ventilation issues and flashing failures only become apparent during an inspection in the field. A good contractor will include the condition of the roof in the report, and many will use a checklist such as InterNACHI’s roof inspection standard, and advise you on what is truly best for your home and wallet, and not the highest bidder.
Questions Homeowners Ask
Frequently Asked Questions
Repair, if the roof is relatively young and the damage is localised. Change when nearing end of life, extensive damage or repair cost is approaching replacement cost.
Replace if the roof is more than 20 years old, has signs of degradation throughout the roof, has several leaks or has a sagging rotted deck. At that time, repairs are simply a delaying measure for a full replacement.
A repair is less of an initial cost, but on an old roof or one that has been severely damaged, it can be false economy. Compare yearly cost of protection rather than just the upfront price.
In some cases – one slope can be replaced if it is damaged. However, partial replacements may result in mismatched aging and seams, so an inspection should be used to assure it is correct.
Not Sure Which You Need? Let’s Find Out
First and foremost, the best thing to do in any roof repair or roof replacement decision is to have an honest no pressure inspection. For more than 40 years, Summit Roofing has been helping Northern Virginia homeowners make the right choice.