Retaining Wall Construction in Manchester, NH: Costs $3,356 to $27,967

Retaining wall estimates depend on height, drainage, soil, access, engineering and finish material. A low wall-face price is not comparable to a complete structural wall with excavation, base, geogrid and drainage. Use the $9,509 midpoint as a planning number, then require the written scope below before comparing Manchester contractor bids.

Hiring a Retaining Wall Construction Contractor in Manchester, NH

When comparing retaining wall construction contractors in Manchester, ask each company to quote the same scope, material grade, permit responsibility, cleanup, warranty, and timeline. That keeps the $3,356 to $27,967 local range useful instead of comparing unrelated bids.

Median hourly wage, Brickmasons & blockmasons, New Hampshire statewide (BLS OEWS May 2025): $32.16

Published Bureau of Labor Statistics medians for the trades that usually do a retaining wall construction, compared with the U.S. median for the same occupation. These are employee wages, not contractor billing rates (which add overhead, insurance, equipment, and profit); HammerIO uses the local-to-national ratio (1.08 for brickmasons) to scale the labor share of the estimate above.

Source: U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics, May 2025 estimates for CBSA 31700 (Manchester-Nashua, NH). Highlighted rows feed the labor input. Full trade table: Manchester construction costs.

Retaining Wall Construction Cost Calculator for Manchester

Adjusted using the BLS OEWS May 2025 median wage for Brickmasons & blockmasons in the New Hampshire statewide ($32.16/hr) and HammerIO's modeled material cost index (117).

Local Cost Breakdown

Retaining Wall Construction vs. Home Value in Manchester

Planning a Retaining Wall Construction in Manchester

Building permits are typically required for a retaining wall construction in Manchester. HammerIO uses a modeled permit allowance of $2,462 here; actual fees follow the local fee schedule and project valuation, so confirm them with the building department and include them in your total budget. Plan for 3-7 days from start to finish.

A retaining wall construction is a complex project best left to licensed professionals. BLS reports a median wage of $32.16/hr for Brickmasons & blockmasons in the New Hampshire statewide, and contractor billing rates run higher to cover overhead, insurance, and profit, and the specialized nature of this work means cutting corners on labor can lead to costly rework.

For the median Manchester household earning $71,059/year, this project at $9,509 represents a significant investment. Consider financing options or phasing the work to spread costs over time.

Financing the project? Compare current rates with Manchester mortgage and HELOC rates to estimate monthly payments. For tax implications, mortgage interest deduction may apply, see SALT deduction guide.

Methodology & Local Data Sources

How we estimate retaining wall construction costs in Manchester: Our local cost figure of $9,509 for Manchester, NH is calculated by adjusting the national mid-range baseline of $8,500 using two location-specific factors:

1. Labor adjustment, 55% of the project cost is treated as labor. That share is scaled by the ratio of the BLS OEWS May 2025 median hourly wage for Brickmasons & blockmasons in the New Hampshire statewide ($32.16/hr) to the U.S. median for the same occupation ($29.87/hr), a factor of 1.08. BLS publishes employee wages, not contractor billing rates, so only the ratio is used; the wage itself is not a quote. BLS suppresses some metro-level occupations; the statewide median is used here.
2. Materials adjustment, 45% of cost is treated as materials, scaled by HammerIO's modeled material cost index for Manchester of 117 (national baseline = 100). The BLS Producer Price Index tracks national construction-material price trends; it does not publish a city-level index, so this regional factor is an estimate.
3. Permit fees are shown as a modeled allowance of $2,462 for Manchester. Actual permit costs follow the local fee schedule and vary by project scope, valuation, and inspection requirements set by the local building department.
4. Cost-per-square-foot for this project in Manchester: approximately $45/sqft in HammerIO's model, useful as a rough check when comparing contractor bids.

Authoritative data sources (US gov):

• BLS Occupational Employment and Wage Statistics (May 2025), median hourly wages by trade for New Hampshire statewide; the labor input above
• BLS Producer Price Index, Construction Materials, monthly materials cost tracking
• U.S. Census Bureau, Manchester QuickFacts, household income, demographics, housing
• DOE Building Energy Codes Program, energy efficiency requirements affecting retaining wall construction permits
• International Code Council (ICC), IBC, IRC, and IECC code references most New Hampshire jurisdictions adopt
• EPA RRP Rule, Renovation, Repair, and Painting compliance for pre-1978 homes

Disclaimer: Cost estimates are based on regional averages and modeling, actual quotes from licensed contractors in Manchester can vary widely from these figures based on project complexity, contractor backlog, and material availability. Always obtain at least 3 written bids before committing.

Reviewed by Rowan Ashby · Last updated 2026

Find a Licensed Contractor + Permits in Manchester

For a retaining wall construction in Manchester, New Hampshire, verify whether the contractor or specialty trade must be licensed, registered, insured, or permitted locally. Use official lookup tools and the local building department instead of trusting general directory sites:

Why this matters: Hiring an unqualified or uninsured contractor in New Hampshire can create insurance, inspection, warranty, and code-compliance problems. Always verify license or registration requirements, insurance, permit responsibility and inspection closeout before signing contracts.