How to Choose a Fence Contractor in Southern NH (5 Questions to Ask)

Getting multiple quotes on a fence is smart. But comparing quotes without knowing what questions to ask means you might be comparing a proper install to a shortcut install at a lower price — and you won't know the difference until your fence starts moving two winters from now. Here are the five questions that actually matter.

1. How deep will you set the posts?

This is the most important technical question and the one most homeowners don't ask. In New Hampshire, posts need to go below the 48-inch frost line to prevent frost heave. A contractor who says '18 to 24 inches is standard' is telling you they're going to install a fence that moves. The correct answer is 48 inches minimum, or to below the frost line if the local depth is different.

Follow-up question: Is that in your written estimate? If a contractor won't put post depth in writing, it won't be respected on installation day.

2. Are you licensed and insured?

New Hampshire doesn't require a contractor's license specifically for fence installation, but the contractor should carry general liability insurance and workers' compensation. Ask for a certificate of insurance and verify it's current. If a worker is injured on your property and the contractor doesn't have workers' comp, you could be liable. If the crew damages your property or your neighbor's, liability insurance is what covers it. Any legitimate contractor will provide a certificate without hesitation.

3. What brand and grade of material are you using?

Quotes that look similar on price can use very different materials. For wood fences, ask about lumber retention level — ground-contact posts need .40 or .60 retention, not above-ground .25. For vinyl, ask the manufacturer name — there's a significant quality difference between budget vinyl and brands like Bufftech, ActiveYards, or CertainTeed. Cheap vinyl becomes brittle in NH winters within 5–10 years. For aluminum, ask about the gauge (thickness) and powder coat warranty.

4. Will I get a written estimate with line items?

A handshake quote or a single-line number texted to you is not a contract. A real estimate should specify: linear footage, fence style and height, post depth and spacing, gate quantity and hardware, material brand/grade, total price, and payment terms. If you have this in writing, everyone is on the same page and there's no room for scope creep or surprise charges at the end.

5. Can I see examples of your recent work?

A contractor who has been installing fences in Southern NH should be able to show you recent completed jobs — either photos or references you can call. Ask specifically for jobs done in your town or with the same material you're choosing. A portfolio of vinyl privacy fences doesn't tell you much about their aluminum pool fence work.

Red Flags to Watch For

• Requires full payment upfront before work begins — a deposit of 25–50% is normal; full payment before a dig is a sign of a company you may not see again
• No written estimate — verbal quotes are how disputes start
• Significantly below every other quote — review what's different about the scope and materials
• Won't produce a certificate of insurance
• No local presence — a company with no local reviews, no address, or a recently-created website deserves extra scrutiny
• Pressure to decide immediately — good contractors don't need to pressure you

Green Flags That Signal a Professional Operation

• Comes to your property before quoting — not just a drive-by or a Google Earth estimate
• Asks about your dog, your terrain, your HOA — shows they're thinking about your specific situation
• Gives you a detailed written estimate without being asked
• Mentions frost line depth and post material proactively
• Has verifiable reviews from your town or area
• Calls Dig Safe (811) before any digging — required by law in NH