Should You Replace Your Roof and Siding at the Same Time? The Honest Truth
If your home’s exterior is showing its age, you might be wondering if you should replace your roof and your siding at the same time, or space the projects out.
If you ask around, a lot of contractors will give you a standard sales pitch about how doing both saves money on "setup time" or "dumpster rentals." Let’s call that what it is: a line. In reality, roofing and siding are almost always handled by two completely separate crews. They each have to set up on their own, and they get paid the same whether the other trade is there or not.
So, why should you do them at the same time? Here are the actual, practical reasons why a complete exterior replacement makes the most sense.
1. Taking Everything Down to the Wood
There's something incredibly reassuring about knowing that all the wood sheathing on your house is in perfect shape. Tearing off all the roofing and siding at once allows you to strip the entire house down to the bare wood and address any hidden leak issues or damage before the new materials go on.
Depending on when your siding was originally installed, there may be no housewrap at all. If not, the wood will be right there when the old siding is removed. That is when we inspect it thoroughly and install a brand-new housewrap. Even if you do already have a housewrap, chances are it is an older, inferior product or it will get damaged during the removal of the old siding, so it should be replaced anyway.
2. Proper Flashing and the Housewrap Connection
Once you are down to the wood, you can correctly address the most critical area of your home's exterior: where the roof meets a wall. To do a roof replacement correctly, these intersections need to be completely re-flashed.
Whether it's step flashing along a sloped roofline or apron flashing where a roof meets a flat wall, installing this metal properly means a contractor has to remove or detach pieces of the siding. Furthermore, doing it perfectly means taping the home's housewrap on top of that new flashing to create an impenetrable water barrier. If you aren't replacing the siding and wrap, your roofer is forced to tape the new flashing directly to the bare wood wall, which is highly suboptimal. Replacing everything at once allows your contractor to tie your siding's defenses directly into your roof’s defenses.
3. Maximum Efficiency and Performance
Roofing, siding, and trim systems all work together, both in terms of water protection and in terms of performance.
For example, older vents along the gables of the siding can actually be fighting the intended airflow of your roof. Or, your roofing ridge vent may be almost non-functional if your soffits aren't properly ventilated and installed. When you replace them simultaneously, you guarantee maximum efficiency. Plus, there are many high-performance roofing underlayments and exterior insulations that can drastically increase your home's energy efficiency. It is great for your peace of mind (and your energy bills) to know your roof and siding are both working optimally together.
4. The Real Reason You Save Money
We've all heard the line that you can save money by doing both projects at once because "our guys will already be there."
News flash: they aren't the same guys. And honestly, would you want them to be? Roofing and siding are two completely separate trades that require two very different skill sets. I've always had my roofers do the roofing, and my siding mechanics perform my siding replacements. Sure, some people and crews are capable of installing both. But I speak from experience when I tell you that jacks of two trades are more likely to be masters of only one.
The real reason you save money isn't because of shared logistics. It saves you money because you are handing a contractor two major jobs at once. Think about it like buying in bulk at a store. When you buy more, you get a discount. Contractors are motivated to give you a better overall price because a dual project is highly valuable to them. In fact, at JP Construction Services, we offer coupons designed specifically for customers who are performing both a roofing and siding replacement at the same time.
5. A Complete Aesthetic Face-Lift (and Avoiding the "Contrast" Trap)
There are more colors and styles of roofing and siding available on the market today than ever before, making it the perfect time to give your house a complete exterior face-lift.
But there is another visual factor to consider: contrast. Often, homeowners replace just one element, only to realize that putting a brand-new, crisp roof on the house instantly highlights just how faded, dirty, or outdated the 15-year-old siding really is (or vice versa). Replacing both at once ensures you get to coordinate them perfectly for a seamless, brand-new look.
6. The Construction Sequence: Keeping It Clean
As a side note to that visual upgrade, it is important to remember that roof replacement is a messy job. All good contractors take extensive steps to protect your house and landscaping, but tearing off thousands of pounds of old shingles creates debris and dust that inevitably finds its way onto your exterior walls.
When you do a complete exterior replacement, the construction sequence works in your favor. We tear off and install the roof first, and then we replace the siding. This means your brand-new siding goes up last and stays relatively clean, rather than getting covered in roofing dust.
7. The Power of the "Before and After"
You may be old enough to remember the ol' "we want to use your house as the neighborhood model" pitch. And yes, back in the day, that was almost always just a pitch.
But today, things are different. Choosy clients want to see real examples of a contractor's work. With social media making videos and before/after shots so much more powerful, the value of being able to showcase a stunning, complete exterior transformation—a brand-new roof and flawless new siding on the same location—is tremendous. Because contractors value these complete makeovers to showcase to future clients, they are highly motivated to give you their absolute best price and highest-tier workmanship.
8. Single-Contractor Accountability
Finally, tackling both projects at once usually means hiring the same company to handle the entire exterior.
If you hire a great, reputable contractor, you'll be doubley happy. You get a cohesive project, presumably one point of contact, and a beautifully finished home. Of course, the flip side is that if you hire a bad contractor, you'll be doubley sad. That’s why it is critical to do your research, check credentials (like VSI Certification for siding), and hire a proven local expert.
Ready for a Transformation?
Whether you are in Harford County or Montgomery County in Maryland, or up in Chester County, PA (or anywhere within our service area), JP Construction Services is ready to handle your complete exterior replacement. We don't use sales gimmicks—just top-tier workmanship and honest pricing. Contact us today to see how we can transform your home. Call (877) 846-9566 or schedule your free roofing and siding consultation online.
