NW Brothers provides dry rot repair for homeowners throughout Portland. We evaluate accessible areas of wood deterioration, look for visible conditions that may be contributing to moisture exposure and prepare a written estimate for the proposed repairs.
Wood that feels soft, breaks apart easily or can be penetrated with light pressure may have experienced significant deterioration and should be evaluated.
Peeling coatings, open joints and deteriorated sealant can expose exterior wood to repeated moisture. These visible conditions do not prove that dry rot is present, but they may justify further inspection.
Water staining, swelling, discoloration or recurring dampness around siding, trim, windows, doors and roof transitions may indicate a moisture-entry problem.
Repeated painting, caulking or surface repairs may not resolve the problem when deteriorated wood or an ongoing moisture source remains beneath the visible surface.
Dry rot is a common term used to describe wood deterioration caused by decay fungi. Although the damaged wood may appear dry when discovered, moisture is necessary for fungal wood decay to develop. That is why an effective repair must consider both the damaged material and the conditions that allowed the wood to remain wet.

The appropriate repair depends on the location and extent of the deterioration. A localized repair may be possible when the damage is limited and the surrounding materials remain in serviceable condition.
A larger repair may be required when deterioration extends behind siding, affects several pieces of trim or involves framing and other underlying materials. The scope may also expand when the moisture-entry condition affects more than one exterior component.

The cost of dry rot repair depends on the extent of the damage, where it is located, and which materials need to be replaced. Small areas of damaged trim or siding may be relatively simple to repair, while rot affecting framing, sheathing, windows, or structural components can require more extensive work. Accessibility, labor requirements, and fixing the moisture source that caused the rot can also affect the final cost.
NW Brothers can evaluate the affected areas, identify the extent of the dry rot, and provide a written estimate for the recommended repairs. Contact us to schedule an on-site dry rot inspection for your Portland home.
We believe that honesty and a commitment to the safety of your home are the foundation of every successful project, and that’s why homeowners trust us and recommend our work.


The NW Brothers Construction LLC were very professional and efficient AND reasonably priced. They installed 7 new first floor windows in our 103 yr old Hall. They dealt with the many variables that came up with great ideas and helpful options and suggestions. –


I had an excellent experience with NW Brother Construction to change my roof from start to finish. They were professional, responsive, and incredibly easy to work with.


Hired NW Bros to replace all our LP siding, exterior paint, and do some interior repairs. They not only had the best price, but also did an outstanding job. They were punctual and stayed on schedule, even with a few rain days.
Tell us where you have noticed soft wood, staining, peeling paint, moisture or other signs of possible deterioration.
We visit the property to evaluate accessible affected areas, discuss your concerns and review the surrounding exterior conditions.
You receive a proposed scope describing the visible repair area, related work and expected project cost based on the accessible conditions.
We expose and remove damaged materials as required by the agreed scope, complete the proposed repairs.
We review the completed work and discuss any final project details with you.

Your home should be a comfortable, dependable place where your family can enjoy everyday life. Addressing deteriorated wood and the conditions contributing to moisture exposure can help protect the exterior components surrounding your living spaces.
NW Brothers carefully plans each dry rot repair around your home, your priorities and the conditions found in the affected area.
NW Brothers provides dry rot repair for homeowners throughout Portland. Contact our team if you have noticed soft wood, recurring moisture, damaged trim or deterioration around siding, windows, doors or other exterior components.


From start to finish, from getting an estimate to completing the project, these guys did a GREAT job: installing siding, putting up exterior moldings, and replacing exterior windows and doors with great quality.

Dry rot is a common term for fungal wood decay. Despite the name, wood-decay fungi require moisture to grow. The wood may feel dry when the deterioration is eventually discovered, but moisture was involved in creating the conditions that allowed the decay to develop.
Wood decay can develop when wood remains exposed to sufficient moisture. Possible sources include failed sealant, damaged flashing, plumbing leaks, roof or gutter problems, poor drainage and gaps around siding, windows, doors or exterior penetrations. The actual source must be evaluated at the affected area.
Possible signs include soft or crumbling wood, discoloration, cracking, swelling, peeling paint and recurring moisture. However, similar symptoms can have different causes. An on-site evaluation is needed to determine the visible condition and appropriate repair scope.
Wood decay can become more extensive when moisture and suitable conditions remain present. Removing visibly damaged material without addressing the conditions contributing to moisture exposure may leave the underlying problem unresolved.
The answer depends on the extent and location of the deterioration. Severely damaged wood may need to be removed and replaced, while a more limited repair may be possible in other situations. Covering deteriorated wood with paint, caulk or filler does not restore material that has lost strength.
The schedule depends on the size and location of the repair, the materials involved and whether additional concealed damage is found after the area is opened. We provide a project schedule based on the proposed scope and update you if newly discovered conditions affect the work.
Often times no, Permit requirements depend on the repair scope. Limited nonstructural repairs may be treated differently from work involving structural framing or alterations. The requirements should be confirmed for the specific property and proposed repair before construction begins.
Concealed deterioration may become visible after siding, trim or other materials are removed. If additional damage is discovered, we explain the condition, discuss the recommended work and obtain approval for any change in scope before completing additional repairs.