A new roof is a major investment, and knowing what to expect during the installation process can help you plan ahead.
From choosing materials to the final inspection, understanding the timeline and costs involved ensures a smooth and stress-free experience.
At Roofers Worcester, we guide homeowners through every step of the roofing process.
In this guide, I’ll explain each stage of a new roof installation, how long it takes, and what factors affect the cost.
Step 1: Roof Inspection & Choosing Materials
Before installation begins, a professional roofer will inspect your existing roof to determine if a replacement is needed.
They’ll check for missing shingles, leaks, rot, and structural issues.
Once the inspection is complete, it’s time to choose your roofing material.
The most common options include:
- Asphalt shingles – Affordable and widely used, lasting 15-30 years.
- Metal roofing – Durable and energy-efficient, lasting 40-70 years.
- Slate or clay tiles – Aesthetic and long-lasting, but heavy and expensive.
- Wood shakes – Natural and rustic but require maintenance.
- Flat roof materials (EPDM, TPO, PVC) – Used for modern or commercial buildings.
Each material has different costs, durability, and weather resistance, so discuss your needs with your roofer to choose the best option.
✔ Tip: If your roof is over 15-20 years old or has frequent leaks, a full replacement is likely needed.
Step 2: Getting Permits & Scheduling the Installation
Most roofing projects require permits to comply with local building codes. Your roofing contractor should handle the paperwork and obtain any necessary approvals.
Once permits are secured, the installation date is scheduled.
The best time for roofing work is usually spring, summer, or early autumn, as extreme weather can cause delays.
✔ Tip: Schedule your roof replacement at least a month in advance, especially during peak seasons.
Step 3: Removing the Old Roof
On installation day, the first step is removing the old roofing material.
This process includes:
- Stripping away shingles, tiles, or metal panels.
- Removing old underlayment and flashing.
- Inspecting the roof deck for rot, mold, or structural damage.
If the roof deck is in good condition, it will be prepped for new materials. If damaged, repairs or replacements may be necessary before proceeding.
✔ Tip: If your roofer finds rotting wood or mold, expect an additional cost for repairs before installation can continue.
Step 4: Installing Roof Underlayment & Flashing
Before the outer roofing material is installed, a protective underlayment is laid down.
This acts as a waterproof barrier, preventing leaks and improving insulation.
- Felt or synthetic underlayment is placed over the roof deck.
- Flashing is installed around chimneys, vents, and skylights to seal vulnerable areas.
- Drip edges are placed along the roof’s edge to prevent water from seeping under shingles.
This step is crucial in protecting your home from water damage and ensuring roof longevity.
✔ Tip: High-quality underlayment extends the life of your roof, so avoid cutting costs on this layer.
Step 5: Installing the New Roofing Material
Now it’s time for the most important step—laying down the new roofing material. The process varies based on your chosen material:
- Asphalt shingles are nailed in overlapping rows from the bottom up.
- Metal roofing panels are fastened with screws and sealed at the seams.
- Clay and slate tiles are carefully placed and secured with mortar or adhesive.
- Flat roof membranes are heat-welded or glued in place.
This phase typically takes one to three days, depending on the size and complexity of the roof.
✔ Tip: If rain is in the forecast, your roofer should cover exposed areas with tarps to prevent water damage.
Step 6: Clean-Up & Final Inspection
Once installation is complete, the roofing team will thoroughly clean up debris, nails, and leftover materials. Magnetic tools are used to pick up stray nails from the ground, ensuring safety around your home.
A final inspection is conducted to:
- Check for proper installation and sealing.
- Ensure flashing and gutters are intact.
- Verify the roof meets building codes and manufacturer warranties.
After approval, your new roof is ready to protect your home for decades!
✔ Tip: Ask for warranty details and maintenance recommendations before your roofer leaves.
How Long Does a New Roof Installation Take?
Most residential roof replacements take one to three days, but larger or more complex roofs may take up to a week.
Factors that affect installation time include:
- Roof size – Larger homes take longer to reroof.
- Material choice – Asphalt shingles install faster than tile or slate.
- Weather conditions – Rain or extreme heat can delay work.
- Structural repairs – If the roof deck needs replacement, extra time is required.
✔ Tip: Plan for some noise and disruption during the installation, and move outdoor furniture or vehicles away from the work area.
How Much Does a New Roof Cost?
Roof replacement costs vary based on material, labor, and roof complexity. On average:
- Asphalt shingles: £5,000 – £12,000
- Metal roofing: £8,000 – £20,000
- Slate roofing: £15,000 – £40,000
- Clay or concrete tiles: £10,000 – £30,000
- Flat roofing (EPDM, TPO, PVC): £4,000 – £10,000
Additional costs may include:
- Roof deck repairs (£500 – £3,000)
- Flashing replacement (£300 – £2,000)
- Gutter installation (£500 – £2,500)
- Permits and disposal fees (£200 – £1,000)
✔ Tip: Get multiple quotes from reputable contractors to compare pricing and warranties.
To Sum Up: What to Expect from a New Roof Installation
✔ Roof inspection and material selection – Choose the best option for durability and budget.
✔ Permits and scheduling – Secure approvals before work begins.
✔ Removing the old roof – Inspect and repair any damage before installation.
✔ Installing underlayment and flashing – Ensures waterproofing and protection.
✔ Laying new roofing material – Shingles, metal panels, tiles, or membranes are secured in place.
✔ Clean-up and final inspection – Debris is cleared, and quality checks are done.
✔ Timeframe: 1-3 days for most homes, longer for complex projects.
✔ Cost: Varies by material, size, and labor, ranging from £5,000 to £40,000.
At Roofers Worcester, we provide professional, high-quality roof installation services with transparent pricing and expert craftsmanship.
Contact us today for a free quote and consultation!
FAQs
How do I know if I need a new roof?
If your roof is 15-20 years old, has leaks, missing shingles, or sagging, it may be time for a replacement.
Can I stay in my home during the roof installation?
Yes! However, expect noise and vibrations. If you work from home, consider making alternative plans.
How long will my new roof last?
It depends on the material—asphalt lasts 15-30 years, metal lasts 40-70 years, and slate can last over 100 years.
🚨 Ready for a new roof? Contact Roofers Worcester today for a free consultation! 🚨