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Skylight Installation, Repair & Replacement in Leesburg, VA
Skylight Installation, Repair & Replacement
Skylight installation in Loudoun County runs $1,200 to $2,500 per unit fitted. Repairs start at $250, and most leaking skylights are a flashing or seal problem rather than a failed unit — worth knowing before anyone quotes you a replacement.
Loudoun Roofing installs, replaces and repairs skylights across Leesburg, Loudoun County and into Fairfax County. We’re roofers, which matters more here than it sounds: a skylight is a hole in your roof, and almost every skylight problem we’re called to is a flashing failure rather than a fault with the glass.
Most of our skylight work is residential, though we also handle units on commercial and low-slope roofs.
Why Homeowners Add Skylights
A skylight does something no window can: it brings daylight into the middle of a room rather than from one edge. That changes how a space feels in a way that’s hard to appreciate until it’s done.
What you actually get:
- Daylight where there isn’t any — interior hallways, stairwells, bathrooms and north-facing rooms that stay dim whatever you do with lamps.
- Less reliance on artificial light through the day. The U.S. Department of Energy publishes guidance on daylighting and window efficiency if you want to read the detail.
- Ventilation, if you choose a venting unit. Hot air rises, and an opening skylight is the most effective way to move it out of a room in a Virginia summer.
- A feature buyers notice. Hard to put a number on, but a well-placed skylight is the kind of thing people remember about a house.
Skylight Installation Across Northern Virginia
We travel further for skylight work than for general roofing, because fewer contractors treat it as roofing rather than glazing.
Leesburg and central Loudoun — older homes in the historic district where a skylight needs Board of Architectural Review approval if it’s visible from the street, and newer homes where the original builder units are now reaching the age where seals fail.
Ashburn, Chantilly and Dulles — homes built from the late 1990s onward, many with original skylights now at 20-plus years. This is where most of our replacement work comes from.
Great Falls, McLean and Reston — larger custom homes with multiple units, sun tunnels and often complex roof geometry around them.
Waterford, Middleburg and western Loudoun — historic properties where a skylight has to sit within slate or standing seam without spoiling it, which is a different job from cutting into asphalt.
Skylight work usually requires a permit, since it’s a structural opening in the roof. Loudoun County Building and Development handles those, and inside Leesburg town limits a Town of Leesburg zoning permit is needed first. We pull both.
Check any contractor’s Virginia licence free through the Department of Professional and Occupational Regulation — ours included.
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Our Services
Roofing Services
Our crews are trained in the latest safety protocols, material handling, and installation techniques. Each member is vetted, insured, and committed to getting the job done right the first time. We frequently complete OSHA-certified safety training and maintain up-to-date licenses.
Our Skylight Installation Process
We take a detail-oriented approach to every skylight installation job in Loudoun County, VA. Our process ensures a leak-free, energy-efficient, and visually seamless result:
- Site Evaluation: We assess your roof type, pitch, and interior layout to ensure optimal placement.
- Product Recommendation: Based on your goals, we recommend the best skylight style and brand (such as Velux skylights).
- Professional Installation: Our certified roofing professionals handle all structural framing, flashing, and sealing to prevent future leaks.
- Cleanup & Quality Check: We leave your space spotless and conduct a full post-install inspection to ensure long-term performance.
Skylight Repair
Most leaking skylights don’t need replacing. In our experience the great majority of skylight leaks are one of four things, and all of them are repairs:
- Failed flashing — the metal that ties the unit into the roof surface. The most common cause by a distance, and the reason a roofer should be doing this work rather than a window company. Often follows storm damage.
- Perished seals around the glazing, which harden and crack with age and UV exposure.
- Condensation mistaken for a leak — water on the inside of the glass on cold mornings is usually a ventilation problem in the room below, not a roof problem at all. Worth ruling out before anyone gets on the roof.
- Blocked or badly detailed drainage above the unit, where debris collects on the upslope side and water backs up under the flashing.
Repairs start at $250. We’ll tell you if it’s condensation and charge you nothing for saying so. For a wider look at leaks, see roof repair.
Skylight Replacement
Replacement makes sense when the unit itself has failed rather than its detailing:
- The glazing seal has blown and there’s permanent fogging between the panes
- The frame is cracked, warped or rotted
- The unit is over 20 years old and leaking repeatedly
- Older designs lacking UV protection or proper insulation, where a modern unit pays for itself in comfort
- You’re having the roof replaced anyway — this is the big one. Replacing a skylight during a roof replacement costs a fraction of doing it as a standalone job, because the flashing and surrounding roof surface are already open. A 15-year-old skylight left in place under a new roof is a leak waiting to happen, and a very expensive one to fix later.
Curbs and openings from older units rarely match modern sizes, so a replacement usually involves reframing the opening. We’ll tell you that at the quote rather than after the old unit is out.
For a detailed walkthrough of diagnosing a leak yourself, see our guide to skylight leak repair.
Types of Skylights We Install
At Loudoun Roofing, we understand that every property is unique. That’s why we offer a wide range of skylight types to fit your needs. Whether you’re considering a new addition for your home or a multi-unit residential complex, our expert team can recommend and install the right solution. Learn more about our Residential Roofing, Multi-Family Roofing, and Roof Installation services that pair perfectly with skylight installations.
1. Fixed Skylights
These are ideal for adding natural light to spaces that don’t require ventilation, like hallways, attics, or stairwells. Fixed skylights are budget-friendly and offer a clean, modern look.
2. Ventilated Skylights
Installed in moisture-prone areas such as bathrooms or kitchens, these skylights open to allow airflow, helping prevent mold and condensation. Many come with solar-powered automation and rain sensors.
3. Tubular Skylights
A compact option that’s perfect for small, enclosed areas. These use a reflective tube to direct sunlight into tight interior spaces like closets or powder rooms. Installation is quick and less invasive.
4. Solar-Powered Skylights
High-tech and eco-friendly, these skylights feature built-in solar panels and remote controls for effortless use. Great for homeowners looking to boost energy efficiency while maintaining convenience.
When to Install a Skylight
Skylight work is weather-dependent in a way most roofing isn’t, because the roof is open while the unit goes in.
Late spring through early autumn is the straightforward window — dry, settled weather and long days. Most of our skylight work happens between May and September for that reason.
Winter installation is possible but needs a clear forecast and a compressed schedule. Sealants and flashing tapes have minimum application temperatures, and rushing that is how a skylight ends up leaking in year two.
The useful consequence: if you’re planning a skylight for next summer, the time to get it quoted is late winter. Booking fills from April onward, and a rushed install in August is worse than a planned one in May.
If you already have a leaking skylight, that’s different — we treat it as a repair and deal with it whatever the season. See emergency roof repair if water is coming in now.
Why Choose Loudoun Roofing
As a top-rated roofing contractor, Loudoun Roofing has built a strong reputation for integrity, reliability, and workmanship. Here’s what sets us apart:
- Local Expertise: We understand the weather patterns, zoning regulations, and architectural preferences of Northern Virginia, including historic and HOA-regulated neighborhoods.
- Certified Installers: Our technicians are factory-trained to install all types of skylights, including deck-mounted and curb-mounted styles.
- Leak-Proof Guarantee: We use advanced flashing systems and high-quality sealants to ensure no-leak skylight performance even during heavy rain.
- Flexible Scheduling: With extended weekday hours and weekend availability, we work on your timeline, minimizing disruption to your routine.
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Frequently Asked Questions
How much does it cost to install a skylight?
The cost of skylight installation typically ranges from $1,200 to $2,500, depending on the type of skylight (fixed, ventilated, or solar-powered), roof pitch, and installation complexity. At Loudoun Roofing, we offer free, detailed estimates to help you budget confidently.
Can skylights help reduce energy bills in Northern Virginia?
Yes, properly installed skylights can significantly reduce lighting and heating costs. In Loudoun County, where we enjoy over 200 sunny days per year, skylights can cut artificial lighting needs by up to 80% and help with passive solar heating in winter.
Are skylights prone to leaking during Virginia storms?
Not when installed correctly. As an experienced roofing contractor, Loudoun Roofing uses advanced flashing systems and high-quality sealants to ensure a watertight installation, even during the region’s heavy rains or snowstorms.
What type of skylight is best for my home?
It depends on your goals and roof structure. For homes, we often recommend ventilated skylights for bathrooms and kitchens, tubular skylights for hallways and closets, and solar-powered models for energy-conscious homeowners. We’ll guide you based on your layout and lighting needs.
Do I need a permit to install a skylight?
In most cases, yes. Permits may be required depending on the scope of work and local codes. Loudoun Roofing handles all permitting as part of our service, ensuring compliance with town regulations and Loudoun County building codes.
How long does it take to install a skylight?
Most standard skylights can be installed in 4–8 hours, while larger or custom installations may take 1–2 days. We always schedule projects to minimize disruption to your daily routine.
My skylight is leaking — does it need replacing?
Usually not. Most skylight leaks are a flashing failure or a perished seal rather than a fault with the unit, and both are repairs starting at $250. Replacement makes sense when the glazing seal has blown and the panes have fogged permanently, when the frame is damaged, or when the unit is over 20 years old and leaking repeatedly.
There’s water on the inside of my skylight glass. Is that a leak?
Often it’s condensation rather than a leak, particularly on cold mornings and in bathrooms and kitchens. The fix is ventilation in the room below, not roof work. We’ll tell you if that’s what you have — and we won’t charge you for saying so.
Should I replace my skylights when I get a new roof?
If they’re more than about ten years old, yes. Doing it during a roof replacement costs a fraction of a standalone job because the flashing and surrounding surface are already open. Leaving an ageing skylight under a brand-new roof is the most common avoidable leak we get called to, and fixing it later means disturbing new roofing.
Do you install sun tunnels as well as skylights?
Yes. A sun tunnel brings daylight into a room with no roof access directly above it — an interior bathroom, a hallway, a walk-in closet. They’re cheaper than a full skylight, need a much smaller roof opening, and suit spaces where a conventional unit isn’t possible.
Get in Touch with Loudoun Roofing
Loudoun Roofing & Home Improvement
Leesburg, Virginia 20175
Monday: 6AM – 10PM
Tuesday: 6AM – 10PM
Wednesday: 6AM – 10PM
Thursday: 6AM – 10PM
Friday: 6AM – 10PM
Saturday: 8AM – 6PM
Sunday: 8AM – 4PM
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