Measure the Gutter Run Before You Compare Guard Prices

A guard quote usually arrives as a single number, and that number is only as good as the length it was multiplied by. Before you set two guard bids side by side, write down the linear feet of gutter on each side of the house, the number of downspouts, the number of inside and outside corners, and the number of end caps. Those four counts decide most of the difference between two totals that look close.

Gutters and guards

Gutter guards cover the open trough, so the first measurement is the trough itself, not the roof. Walk the house with a tape and record each run separately: front, back, each side, and any short section over a porch or bay. A run that stops at a corner is not the same length as the roofline above it, because the trough turns and the guard has to turn with it. Ask the installer whether the quote counts the length along the gutter or the length of the roof edge. On a house with a return or a dormer those two numbers are rarely the same.

Downspouts matter more than most homeowners expect. Each downspout is a break in the trough where the guard has to be cut, fitted and fastened around the outlet. A quote that lists guard by the foot but says nothing about outlets is leaving the cutting labor somewhere. Count the downspouts on the house, then count the ones on the drawing or list the company gave you. If the two do not match, ask where the difference is priced.

Corners follow the same logic. An outside corner is a bend, and a guard over a bend is either a precut piece or a field cut. Inside corners are often where water sits longest, so the way the guard meets them is worth a question of its own. Write each corner count next to the run it belongs to, so the installer can see exactly where the fitting happens.

Length also changes with the season in ways a tape does not capture. St. Louis gutters go through freeze and thaw cycles, and aluminum expands and contracts over a long run. The quote should say whether the guard is cut to the measured length and fitted to allow for that movement, or fitted tight. That detail belongs on the same line as the footage, not in a footnote at the bottom of the proposal.

What it costs

Gutter guard pricing is usually stated per linear foot, with separate lines for anything that does not fit neatly into footage. Some companies quote one all-in price per foot. Others break out the guard, the hangers or brackets, the downspout work, the end caps and the removal of old guards or debris. Neither approach is wrong, but the two are not comparable until you put them on one sheet. A per-foot figure from one company and an all-in figure from another can describe the same job and still look like different prices.

Ask each company to state what its per-foot figure includes. Ask whether the price covers the full length of the trough or only the sections that get guarded, and whether any section is left open or handled with a separate piece. Ask whether the hangers are included in the foot price and how many are installed per run. A quote that does not say how the guard is fastened to the gutter is not a finished quote.

Access changes cost too. A two-story run over a patio is priced differently from a single-story run that a crew reaches from the ground, because the labor and the equipment are different. If a company adds a line for height or access, that line should name the sections it applies to. A general charge for hard access with no list of sections is difficult to check after the work is done.

Watch for the cleanout. Some quotes assume the gutter is already clear and the trough is sound. If debris, seed or granules are sitting in the trough, or if a section pitches the wrong way, the guard will not solve that, and someone has to correct it first. Ask whether the quote includes clearing the trough and whether a sagging section is included or excluded. A sagging gutter line should be corrected before guards go on, and the quote should say who does that work and what it adds to the total.

What to ask

Bring a written list of counts to each company and ask every one of them to price against the same list. Using one list keeps the numbers comparable. The list should include:

• Total linear feet of gutter, by run, with the side of the house each run sits on.
• Number of downspouts, and whether each outlet is included in the foot price.
• Number of inside corners and outside corners.
• Number of end caps, and whether the quote includes sealing them.
• Hanger or bracket spacing, and whether hangers are priced separately.
• Any section over a porch, bay or patio that needs extra access.
• Whether old debris or a sagging section must be dealt with before the guard goes on.

Then ask the questions that do not show up in the footage. How is the guard fastened, and does the fastener go into the gutter, the fascia or the roof edge? Who removes any existing guard, and where does that debris go? What does the written proposal say about the guard, and for how long? A warranty answer should name its terms in writing before you rely on it. Keys Roofing can put a written scope with measurements and photos in your hands, and the office number is (314) 220-2333 if you want someone to walk the house with you before you decide.

Keep the counts in one document with a column for each company. When every bid is written against the same footage, downspouts and corners, the differences that remain are the ones worth weighing: the guard itself, the fastening method, the cleanup and the access.