Guide for Contractors [Updated 2024]

Cost to Install a Skylight

Are you a contractor looking to install a skylight? Look no further! Our comprehensive guide provides you with all the information you need about costs, installation instructions, and material purchasing tips. Get ready to bring more natural light into your projects with confidence!

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Cost Breakdown

Item DescriptionQuantityUnit of MeasureUnit PriceTotal Price
Skylight Kit1Set$500.00$500.00
Roofing Sealant1Tube$15.00$15.00
Labor Cost9Hours$75.00$675.00
Delivery Charges1Flat Rate$50.00$50.00

Estimate Assumptions

This cost estimate for installing a skylight is based on the cost of a standard skylight kit, which includes the window and necessary framing components, but does not include extra features such as shades or blinds. The cost of the kit varies by size and style but averages around $500.00. Roofing sealant and flashing to prevent leaks are additional expenses. Labor cost is based on an estimated 9 hours of work at $75.00 per hour, a rate that can vary by region and contractor expertise. Delivery charges are a standard cost and vary based on location and vendor. The cost could be higher or lower based on the specific requirements of your project, such as the need for a more expensive skylight, a larger-than-average skylight, or a more complex installation process.

Project Timeline

The estimated timeline for completing the skylight installation project is approximately two days. This includes the time to prepare the area, install the skylight, apply the sealant and flashings, and clean up the site. The actual timeline may vary based on the specifics of your project, including the schedule of your contractor and the complexity of the work involved. Before starting the project, discuss the timeline with your contractor to ensure it fits with your schedule.

Installing a Skylight: A Complete Guide for Residential Contractors

Welcome to our comprehensive guide to installing skylights, a resource specifically designed for residential contractors. In this blog post, we will detail why installing skylights is a value-adding project, explore the different types of skylights, and provide in-depth construction and installation instructions. We'll also share professional tips to ensure a successful, smooth installation process.

The Value of Installing Skylights

Adding a skylight offers substantial benefits to any residential property, making it a worthwhile project for both contractors and homeowners. Here are a few compelling reasons why skylight installation is beneficial:

  • Natural Light: Skylights bring an abundance of natural light into homes, creating bright, welcoming spaces and cutting down on lighting costs during daylight hours.
  • Eco-Friendly: Reducing electrical usage and encouraging solar heat gain in winter makes skylights an eco-friendly, energy-efficient choice – a significant selling point for environmentally conscious homeowners.
  • Added Value: Skylights increase property value, offering a solid ROI for homeowners thinking about resale value. They also add an aesthetic appeal, making homes stand out in the real estate market.
  • Improved Ventilation: Many skylights can be opened, providing added ventilation which contributes to better air quality and comfort within the home.

Different Types of Skylights

Skylights come in a variety of styles and functions, each with its own unique features. It's essential for contractors to understand the different types to recommend the most suitable option based on the property and the homeowner's needs. Here are a few examples:

  • Ventilated Skylights: These can be opened manually or with a controlled mechanism, healthy for improving airflow and providing passive cooling in the summer months.
  • Fixed Skylights: Fixed skylights are permanently sealed and cannot be opened, providing constant natural light and aesthetics without the option for ventilation.
  • Tubular Skylights: Also known as sun tunnels, these are compact and well-suited for smaller spaces where traditional skylights may not fit, funneling sunlight directly from the roof into the room below.

Step-by-Step Construction and Installation Instructions

Installing a skylight requires precision, attention to detail, and adherence to safety protocols. Here's a step-by-step guide to simplify the process:

Planning and Preparation

Before starting, carefully choose the right location for the skylight. It should fit between the roof joists without requiring major structural changes. Also, consider the position of the sun at different times throughout the day for optimal light exposure.

Creating the Opening

Once the skylight location is determined, mark the opening on the roof and cut along the lines using a circular saw. Ensure the hole matches the measurement of the skylight to guarantee a proper fit.

Installing the Skylight

Position the skylight in the hole and fasten it with roofing nails. Seal the joints with a high-quality sealant to prevent leaks. Follow manufacturer instructions for specific installation requirements.

Finalizing the Installation

Next, install the flashing around the skylight to further weatherproof the installation. Finally, complete the interior work by framing the skylight shaft and finishing it with drywall or other suitable materials to match the interior decor.

Professional Tips for Successful Installation

As a contractor, following these tips can contribute to a successful skylight installation:

  • Proper Planning: Take into account the architecture of both the roof and the room when planning the skylight installation. This ensures optimal positioning and maximum benefits.
  • Quality Materials: Use high-quality materials, including the skylight unit and sealants. This ensures durability, leak prevention, and the long-term satisfaction of the homeowners.
  • Safety First: Always prioritize safety when working on roofs. Use appropriate safety gear, ladders, and practices to prevent injuries.
  • Communication with Clients: Having a regularly updated line of communication with clients ensures you meet their expectations and fosters trust throughout the project.


In conclusion, installing skylights is a practical and beneficial service that residential contractors can offer to homeowners. Not only do skylights bring natural light and added aesthetics, but they also increase property value, making them an investment with strong ROI. Proper planning, quality materials, safety, and client communication are paramount for a successful installation.

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