Exterior — the first impression and the last line of defense.

Every guide we've ever written for the exterior of your house — sorted by what you came here to do. 151 exterior projects across repair, install, build, clean, organize, and decorate. The exterior is the room everyone sees and almost no one maintains on schedule. It weathers every season, absorbs every storm, and degrades quietly — a hairline crack in the door frame caulk, a gutter that now pitches the wrong way, house numbers no one can read from the street anymore. Most of it is cheap to fix before it becomes expensive to fix. Almost none of it requires a contractor.

How to use this hub

Pick a verb at the top — what are you trying to do? — and the hub narrows to the relevant slice of guides. If you don't know what you need yet, scroll down for the five most-searched exterior projects across all six task lanes, plus a six-mistake list that covers the things every exterior DIYer learns the hard way at least once. The anatomy section at the bottom breaks the facade into four zones — front-door, siding and trim, roof and gutter, lighting and outlets — so you can find the right guide for the specific part of the exterior that's bothering you.

Exterior by task lane — six paths into exterior work

Repair the exterior — 38 guides

Sagging gutters, cracked caulk around the door frame, rotted fascia and soffit boards, storm damage to siding, a broken porch light fixture, a gate hinge that's pulled away from the post. Repair is the exterior lane where the cost of delay compounds the fastest — a failed caulk joint that leaks for two seasons costs ten times more than the tube of caulk you didn't apply. Browse all exterior repair guides →

Install in the exterior — 41 guides

Smart locks, house numbers with real presence, landscape lighting, doorbell cameras, outdoor GFCI outlets, porch lights, mailboxes, address plaques, motion-sensor lights. Install is the highest-ROI exterior lane — every install is either a daily-use improvement (smart lock, doorbell) or a visual upgrade with compounding resale value (lighting, address numbers). Browse all exterior install guides →

Build for the exterior — 28 guides

A proper mailbox post set in concrete, a front-porch planter built from cedar, a garden gate hung on a custom frame, an address column, a window box, a trellis for climbing roses, a porch railing rebuild. Build is the exterior lane for projects that fit your specific facade because you measured your specific facade. Browse all exterior build guides →

Clean the exterior — 22 guides

Pressure-wash the siding before winter, flush the gutters before the first freeze, clean the mildew off the north-facing fence, wash the exterior windows, clean the grime off the light fixtures. Cleaning is the exterior lane that pays back as prevention — every hour of exterior cleaning prevents multiple hours of exterior repair. Browse all exterior cleaning guides →

Organize the exterior — 8 guides

Cord management for landscape lighting runs, seasonal wreath and decor storage, hose reel installation, key hooks beside the back door, a mailbox organization system for the daily stack. Organize is the exterior lane with the smallest guide count because most exterior organization problems are one-visit fixes, not ongoing systems. Browse all exterior organize guides →

Decorate the exterior — 14 guides

Paint the front door a color with intention, install house numbers that read from fifty feet, hang a porch light that earns its place on the facade, choose a wreath that works with the trim color. Decorate is the exterior lane for the decisions you make once and live with for years — the front door color, the light fixture style, the hardware finish. Browse all exterior decorate guides →

Five most-searched exterior guides

Across all six task lanes, these are the projects readers come to the site for most often. If you're not sure where to start on your exterior, start here.

Six mistakes every exterior DIYer makes once

The exterior is the room where mistakes are most visible — from the street, by every neighbor, every delivery driver, and every prospective buyer. These six mistakes are the most common ones we see, and every one of them is avoidable with five minutes of planning.

1. Painting in direct sun

Exterior paint applied to a hot surface in direct afternoon sun dries too fast, traps bubbles, and begins to peel within months. The fix is simple: work the shade side of the house first, or start early morning before the sun rotates around. The front door is the most common casualty — painted on a warm Saturday afternoon, peeling by the following spring. If you must paint in full sun, use an alkyd trim paint formulated for higher temperatures.

2. Caulking siding gaps that are supposed to drain

Lap siding, fiber cement, and vinyl siding are drainage systems by design. Vertical seams between boards and the weep holes at the bottom of each course are intentional air and water pathways — they let the wall assembly breathe and drain. Caulking these gaps traps moisture behind the siding, accelerates rot, and voids most manufacturer warranties. The rule: only caulk horizontal penetrations (window and door frames, pipe penetrations, trim joints at the top). Leave vertical seams alone.

3. Getting the gutter pitch wrong

Gutters need exactly 1/4 inch of drop per 10 linear feet toward the downspout. Less than that and water sits in the gutter, freezes in winter, and creates ice dams that back up under the first course of shingles and damage the fascia board from behind. More than that and the gutter empties too fast, creating a rushing sound and splashing at the downspout. Use a 4-foot level and mark the pitch before you re-hang every hanger, rather than guessing the pitch by visual inspection.

4. House numbers under 4 inches

House numbers serve two audiences: delivery drivers navigating fast, and emergency responders navigating under stress. Code in most cities requires 4–6 inch minimum character height in a color that contrasts with the background. Numbers under 4 inches are not legible from the street at normal driving speed. If your current numbers are smaller than 4 inches, they are a safety issue as much as an aesthetic one. Choose a finish that provides maximum contrast: brushed brass on navy, matte black on white, satin nickel on dark siding.

5. Undersizing the low-voltage transformer

The most common landscape lighting failure: a transformer rated exactly at the total wattage of the fixtures. Running a transformer at 100% capacity degrades it fast and causes voltage drop across long wire runs, which causes the fixtures at the far end of the circuit to dim or flicker. The correct spec is total wattage divided by 0.8 — in other words, size the transformer at 1.25× your total load. A $120 transformer that's undersized is a $120 transformer you'll replace in two years.

6. Painting hardware instead of removing it

Door hinges, knockers, kick plates, house number backplates, and knob escutcheons painted in place look amateur even on a well-executed paint job. The paint bridges the gap between hardware and door, creates visible brush marks at the edge, and locks hinges into their painted position so the hinge pin is harder to remove later. Remove every piece of hardware before you open the paint can. It adds 20 minutes to the project and saves the entire result.

What's worth paying a pro for

Most exterior DIY is within reach for a motivated homeowner. A few categories aren't — either because the risk is too high, the equipment is too specialized, or the liability is too significant to absorb.

The exterior by zone

The exterior of a house breaks into four distinct work zones. Most exterior projects fall entirely within one zone. Understanding the zones prevents the most common exterior planning mistake: buying materials for one zone and discovering the problem is actually in the adjacent zone.

Front-door zone — door, hardware, numbers, porch light, mailbox

The first five feet of your facade. Everything a visitor or passerby sees from the street at eye level. The front-door zone is the highest-return-per-dollar exterior zone because every upgrade is visible, every upgrade is reversible, and most upgrades cost under $200. Install a smart lock at this guide, install house numbers that read from the street at this guide, and paint the door at this guide. The three projects together constitute a complete front-door zone refresh for under $300.

Siding and trim zone — cladding, fascia, soffits, paint

The weatherproof skin of the house. Every crack in the caulk, every gap at a trim joint, every piece of peeling paint is an invitation for water to enter the wall assembly. The siding and trim zone requires the least glamorous work on the exterior — caulking, painting, replacing rotted fascia boards — but it's the work that prevents the five-figure repairs. Repair guides live at exterior repair; painting guides at exterior decorate.

Roof and gutter zone — shingles, flashing, gutters, downspouts

The water management system. The entire purpose of the roof and gutter zone is to move water from the peak of the house to the ground at a controlled point — and to do it without letting any of that water enter the wall or foundation. Wrong gutter pitch, clogged gutters, failed flashing at the chimney or skylights — these are the failure modes that cause the most expensive interior damage. The most common DIY-accessible repair in this zone is gutter pitch correction and gutter cleaning. Start at gutter repair and exterior clean.

Lighting and outlets zone — landscape lighting, outdoor outlets, low-voltage

The after-dark half of curb appeal, and the zone that most homeowners have never touched. A well-lit facade with path lights, uplights on mature trees, and a quality porch fixture looks like a different house at 8pm than it does at 8am. Low-voltage landscape lighting is one of the most accessible exterior installs — no permit, no electrician, just a transformer and wire runs. The landscape lighting guide covers full installation from transformer sizing to fixture placement. For adding a new outdoor outlet, see exterior install.

Five tools that earn their place in exterior work

Beyond the general home-improvement kit, these five tools come up repeatedly across exterior projects. Each one pays for itself on the first project it's used for.

Refresh, renovate, or rebuild — three exterior scopes

Like every room in the house, exterior projects fall into three budget and effort tiers. Knowing which tier you're in before you start prevents scope creep and cost overruns.

Refresh — paint the front door, new house numbers, new porch light. Under $200, one weekend.

A gallon of exterior alkyd trim paint in a saturated color ($45–65), a set of 5-inch brushed-brass house numbers ($40–80), and a quality porch fixture ($60–120). The three projects together take one Saturday and change the entire face of the house. This is the exterior tier where the return on investment is highest — every dollar of materials delivers five dollars of perceived value. Every guide for this scope lives in exterior install and exterior decorate.

Renovate — full exterior repaint, new gutters, landscape lighting. $5,000–$15,000, over a month.

A full exterior repaint (siding, trim, fascia, soffits — $3,000–8,000 hired, $800–2,000 with a rented sprayer and your own labor), new seamless gutters installed by a gutter company ($1,200–2,500 for an average house), and a full landscape lighting system ($800–3,000 depending on scope). This tier requires coordinating materials and sequencing work — paint before gutters, lighting trenching before mulch. DIY scope is about 40% of the work; the rest is hired specialty work.

Rebuild — new siding, new windows, full re-landscape. Full renovation scope.

Removing existing siding, replacing with new material (fiber cement, engineered wood, or brick veneer), replacing all windows, re-landscaping the approach. This is a full general contracting project — budget $25,000–100,000 depending on house size and materials, and a timeline of six weeks to six months. DIY scope is approximately zero except for the design decisions. Read our General Contracting trade page if you're considering this scope.

Other rooms to work on

About this hub

The exterior room hub aggregates every guide we've written for the outside of the house across all six task lanes. Each lane × exterior intersection (Install × Exterior, Repair × Exterior, etc.) has its own dedicated landing page with the full menu of guides at that intersection — for example, Exterior × Install has all 41 install guides in one place. The room hub is the right starting point if you don't know what you want to do; the lane × room intersection is the right starting point if you do.

One last thing — the exterior rule we live by

The exterior is the only room in the house you can't walk away from. The kitchen can close its doors. The bedroom has privacy. The exterior faces the street at all times, through every season, in every state of maintenance or neglect. Which means that small things done well — a properly pitched gutter, a readable house number, a front door painted with care — accumulate into a house that reads as a house that's cared for. And conversely, small things neglected — a hairline crack left uncaulked, a porch light that's been out since November, house numbers that can't be read from fifty feet — accumulate into something else. The exterior asks for very little ongoing attention. The payback for giving it that attention is disproportionate. Pick one verb. Do one project. The facade is more forgiving than you think, and more rewarding than you expect.